ISTITUTO NAZIONALE DI FISICA NUCLEARE Preventivo per

Transcript

ISTITUTO NAZIONALE DI FISICA NUCLEARE
Preventivo per l'anno 2004
Struttura
BA
Codice
Esperimento
ALICE_GRID
Resp. loc.: Di Bari Domenico
Gruppo
3
PREVENTIVO LOCALE DI SPESA PER L'ANNO 2004
In KEuro
IMPORTI
VOCI
DI
SPESA
DESCRIZIONE DELLA SPESA
Parziali
SJ
Riunioni gruppo di lavoro
Totale Compet.
SJ
6.0
6.0 0.0
0.0 0.0
0.0 0.0
0.0 0.0
Consorzio
Ore CPU
Spazio Disco
Cassette
Altro
0.0 0.0
0.0 0.0
4 double−CPU (1.8 GHz) tipo rack mount (1U) + 1 TB Spazio disco
15.5
15.5 0.0
0.0 0.0
Totale
21.5 0.0
Sono previsti interventi e/o impiantistica che ricadono sotto la disciplina della legge Merloni ?
Breve descrizione dell'intervento:
Mod EC./EN. 2
(a cura del responsabile locale)
A cura della
Comm.ne
Scientifica
Nazionale
Struttura
BA
Codice
Esperimento
ALICE_GRID
Gruppo
3
ALLEGATO MODELLO EC2
Mod EC./EN. 2a Pagina 1
Struttura
BA
Codice
Esperimento
ALICE_GRID
Gruppo
3
Struttura
BA
Codice
Esperimento
ALICE_GRID
Gruppo
3
COMPOSIZIONE DEL GRUPPO DI RICERCA
N
Qualifica
Affer.
RICERCATORE Dipendenti
Incarichi
al
%
Cognome e Nome
gruppo
.
Art.
23
Ruolo
Ricerca Assoc
N
TECNOLOGI
Cognome e Nome
Qualifica
Incarichi
Ass.
Ruolo Art. 23
Tecnol.
Dipendenti
Numero totale dei Tecnologi
Tecnologi Full Time Equivalent
N
Numero totale dei ricercatori
Ricercatori Full Time Equivalent
Cognome e Nome
Qualifica
Incarichi
Dipendenti
Ruolo Art. 15
Annotazioni:
mesi−uomo
Osservazioni del direttore della struttura in merito alla
disponibilità di personale e attrezzature
Mod EC./EN. 7
0
0
%
Collab.
Assoc. tecnica
tecnica
0 Numero totale dei Tecnici
0 Tecnici Full Time Equivalent
SERVIZI TECNICI
Denominazione
TECNICI
%
0
0
Struttura
BA
Codice
Esperimento
ALICE_HMPID
Gruppo
3
In KEuro
IMPORTI
VOCI
DI
SPESA
Parziali
Totale Compet.
SJ
SJ
Tre riunioni plenarie ALICE−ITALIA
14.0
Contatti con ditte
4.0
4 Plenary meetings (4pp 6gg/p 16vv)
25.0
3 Assemblaggio moduli al CERN (2p 15gg/p 6vv)
17.0
4 commissioning moduli all'SPS(4pp 20gg/p 16vv) + 1 Coll. Meeting STAR (2pp 6gg/p
2vv)
60.0
18.0 0.0
169.0 0.0
67.0
Riunioni (vedi all. Modello EC2)
Metabolismo laboratorio Bari
5.0
Metabolismo per commissioning moduli al CERN
15.0
Common expenses ALICE
3.0
Fluidi (gas+fluorocarburo) per il rivelatore RICH
11.0
700 metri di cavi a 5 conduttori per basse tensioni (10 CHF/metro)
5.0
Affitti CERN (vedi allegato EC2a)
5.0
Completamento trasporto radiatori da Bari al CERN
10.0
44.0 0.0
10.0 0.0
Consorzio
Ore CPU
Spazio Disco
Cassette
Altro
Oscilloscopio TDS 3504B Tektronics
13.0
Scheda multicanale Silena 9308
10.0
Posizionatore X−Y della ditta SI
11.0
Moduli di alimentazione bassa ed alta tensione
103.0
0.0
0.0
0.0
0.0
34.0 0.0
103.0 0.0
Totale
378.0 0.0
Mod EC./EN. 2
A cura della
Comm.ne
Scientifica
Nazionale
Struttura
BA
Codice
Esperimento
ALICE_HMPID
Gruppo
3
ALICE − HMPID
Missioni estero (dettaglio voce n.4):
5 riunioni di lavoro (4pp 3gg/p 20vv) 23 Keuro
6 riunioni offline board (1p 3gg/p 6vv) 7
7 riunioni project leader (1p 3gg/p 7vv) 8
8 riunioni managment board (1p 3gg/p 8vv) 9
6 riunioni technical board (1p 3gg/p 6vv) 7
3 riunioni analisi STAR (2p 6gg/p 6vv) 13
−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−
sub−totale 67 Keuro
Consumo (dettaglio voce n.6):
Affitto moduli di elettronica NIM−VME
al POOL del CERN 3 Keuro
Affitto automobile per spostamento
dal laboratorio al pozzo di ALICE e
all'SPS per i test di commissioning 2
−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−
sub−totale 5
Struttura
BA
Codice
Esperimento
ALICE_HMPID
Gruppo
3
Codice
Esperimento
ALICE_HMPID
Struttura
BA
Gruppo
3
N
1
2
3
4
5
6
7
8
9
10
11
12
Qualifica
Affer.
Incarichi
al
Cognome e Nome
gruppo
.
Art.
23
Ruolo
RicercaAssoc
Carrone Enzo
De Cataldo Giacinto Ric.
Di Bari Domenico
Ghidini Bruno
Nappi Eugenio
D.R.
Navach Franco
Pastore Cosimo
Posa Francesco
Sgura Irene
Shileev Kirill
Singh Barthendu
Tauro Arturo
Dott.
R.U.
P.O.
P.A.
Dott.
P.O.
Bors.
B.Str.
B.Str.
Dott.
%
3
3
3
3
3
3
3
3
3
3
3
3
100
80
100
35
70
50
100
50
100
100
100
100
N
TECNOLOGI
Cognome e Nome
1 Castellano Marcello
2 Fratino Umberto
3 Piscitelli Giacomo
N
TECNICI
Cognome e Nome
1 Franco Antonio
2 Liberti Lorenzo
3 Rizzi Vincenzo
1 Elettronica
2 Officina Meccanica
Qualifica
Incarichi
Dipendenti
Ruolo
Art. 15
Collab.
tecnica
70
50
70
%
Assoc.
tecnica
CTer.
Tecn.
CTer.
Annotazioni:
mesi−uomo
1.0
10.0
Mod EC./EN. 7
%
3
1.9
9.85 Tecnici Full Time Equivalent
SERVIZI TECNICI
Denominazione
Qualifica
Incarichi
Ass.
Art. 23
Ruolo
Tecnol.
R.U.
P.A.
P.A.
Dipendenti
100
25
100
3
2.25
Struttura
BA
Codice
Esperimento
ALICE_PIX
Resp. loc.: Vito Manzari
Gruppo
3
In KEuro
IMPORTI
VOCI
DI
SPESA
Parziali
Totale Compet.
SJ
3 riunioni plenarie ALICE ITALIA (4p x 3gg ) 10,0 21,0
12.0
6 riunioni coordinamento Ba−Pd per assemblaggio ( 4p x 3gg)
20.0
contatti con gruppo ATLAS PIXEL Genova per assemblaggio
4.0
Riunioni software
4.0
vedi alleg. mod. EC2
196.0
SJ
40.0
0.0
196.0 0.0
Metabolismo Laboratorio e Camera Pulita
10.0
5.0
Assemblaggio half−stave
10.0
10.0
Magazzino CERN (8) + Realizzazione contenitori trasporto half−stave (7)
15.0
Trasporto half−stave da Bari a Padova
10.0
Consorzio
Ore CPU
Spazio Disco
Cassette
50.0 15.0
15.0
5.0
0.0
0.0
0.0
0.0
40.0
0.0
Altro
Microscopio, telecamera e monitor per Mitutoyo
10.0
Sistema test half−stave
10.0
Micromanipolatori per pull test e riparazione wire−bonding
5.0
Banco riscontro
3.0
2 Workstation in sostituz. di PC obsoleti, per controllo probe−station e sistema di test
dei ladders
4.0
8.0
Posizionatori micrometrici per stazione di assemblaggio half−stave
CORE ( Bump bonding )
59.0
59.0 0.0
Totale
400.0 20.0
Mod EC./EN. 2
A cura della
Comm.ne
Scientifica
Nazionale
Struttura
BA
Codice
Esperimento
ALICE_PIX
Gruppo
3
Dettaglio richiesta missioni estere:
4 Riunioni plenarie CERN ( 6 p x 6gg x24 viaggi ) 45.0
6 Riunioni software (ALICE+ITS) CERN ( 2 p x 6gg x 12 viaggi ) 22.0
4 Riunioni (SPD+ITS) CERN ( 6 p x 6gg x 24 viaggi ) 45.0
4 Riunioni Trigger (Lenti resp. TRIGGER ITS) 6.0
Contatti di lavoro test e messa a punto processo wire−bonding 8.0
2 periodi Test beam PIXEL ( 8 p x 2x15gg x 16 viaggi ) 50.0
Sviluppo e realizzazione della stazione di test per half−stave 10.0
Riunioni coordinazione e contatti al CERN 10.0
totale estero 196
Struttura
BA
Codice
Esperimento
ALICE_PIX
Gruppo
3
Codice
Esperimento
ALICE_PIX
Struttura
BA
Gruppo
3
N
RICERCATORE
Cognome e Nome
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
Bruno Giuseppe
Caselle Michele
Corsi Francesco
D'Alessandro Antonio
D'Erasmo Ginevra
Dragone Angelo
Elia Domenico
Fini Rosa Anna
Fiore Enrichetta Maria
Ghidini Bruno
Lenti Vito
Manzari Vito
Navach Franco
Pantaleo Ambrogio
Paticchio Vincenzo
Santoro Romualdo
Valentini Antonio
Qualifica
Dipendenti
Incarichi
Affer.
al
gruppo
.
Art.
23
Ruolo
Ricerca Assoc
AsRic
AsRic
P.O.
Bors.
P.A.
Dott.
Ric.
Ric.
R.U.
P.O.
I Ric
Ric.
P.A.
D.R.
I Ric
Dott.
P.A.
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
5
%
N
30
100
70
100
30
100
50
50
30
35
70
50
50
30
30
100
30
1
2
3
4
5
6
N
1
2
3
4
Camera Pulita
Elettronica
Officina Meccanica
Progettazione meccanica
TECNICI
Cognome e Nome
Qualifica
Incarichi
Dipendenti
Antuofermo Gaetano
Casamassima Giuseppe
Iacobelli Giuseppe
Liberti Lorenzo
Loconsole Alfredo
Sacchetti Michele
Vasta Pietro
Ruolo
Art. Collab.
15 tecnica
70
30
70
70
30
30
%
Assoc.
tecnica
CTer.
Univ.
CTer.
Tecn.
Univ.
O.T.
O.T.
Annotazioni:
mesi−uomo
2.0
2.0
5.0
2.0
Mod EC./EN. 7
%
6
3
SERVIZI TECNICI
Denominazione
Dipendenti
1
2
3
4
5
6
7
Qualifica
Incarichi
Cognome e Nome
Ass.
Ruolo Art. 23
Tecnol.
R.U.
De Venuto Daniela
P.O.
Galantucci Luigi Maria
R.U.
Marzocca Cristoforo
Bors.
Matarrese Gianvito
Dott.
Percoco Gianluca
R.U.
Spina Roberto
TECNOLOGI
50
20
40
50
60
30
50
7
3
Codice
Esperimento Gruppo
ELETTRO
3
Rapp. naz.: Franco Garibaldi
Rappresentante nazionale:
Struttura di appartenenza:
Posizione nell'I.N.F.N.:
Franco Garibaldi
ISS
INFORMAZIONI GENERALI
Diffusione di elettroni
Linea di ricerca
Laboratorio ove
si raccolgono i dati
Sigla dello
esperimento
assegnata dal
laboratorio
TJNAF (CEBAF) − USA
Elettro
Acceleratore di Elettroni a Cavità superconduttrici
Acceleratore usato
Fascio
(sigla e
caratteristiche)
CEBAF (Continuous Electron Beam Accelerator Facility). Acceleratore di Elettroni fino a 6 GeV con duty cycle
100% e 200 microamperes
Diffusione di elettroni
Processo fisico
studiato
Spettrometri Magnetici ad alta risoluzione
Apparato
strumentale
utilizzato
Bari, Gr. Coll. Sanità
Sezioni partecipanti
all'esperimento
Jefferson Lab., Tohoku University, varie Università americane
Istituzioni esterne
all'Ente partecipanti
vari anni
Durata esperimento
Mod EC. 1
(a cura del responsabile nazionale)
Struttura
BA
Codice
Esperimento
ELETTRO
Resp. loc.: De Leo Raffaele
Gruppo
3
In KEuro
IMPORTI
VOCI
DI
SPESA
Parziali
SJ
Viaggi a Roma
Totale Compet.
SJ
4.0
4.0 0.0
Viaggi a TJNAF (Virginia) per manutenzione RICH, turni di misura e collobaration Meeting
28.0
28.0 0.0
Metabolismo
5.0
Magazzino TJNAF
8.0
13.0 0.0
0.0 0.0
Consorzio
Ore CPU
Spazio Disco
Cassette
Altro
0.0 0.0
0.0 0.0
0.0 0.0
0.0 0.0
Totale
45.0 0.0
Mod EC./EN. 2
A cura della
Comm.ne
Scientifica
Nazionale
Struttura
BA
Codice
Esperimento
ELETTRO
Gruppo
3
Nel 2003 il gruppo ha contributo ad assemblare parte della elettronica di acquisizione del rivelatore RICH. Il gruppo ha
partecipato alle misure dell'esperimento GDH.
Struttura
BA
Codice
Esperimento
ELETTRO
Gruppo
3
Codice
Esperimento Gruppo
ELETTRO
3
PREVENTIVO GLOBALE DI SPESA PER L'ANNO 2004
In KEuro
A CARICO DELL' I.N.F.N.
Struttura
Miss. interno Miss. estero.
di cui SJ
BA
ISS
di cui SJ
Materiale
di cons.
Trasp.
e Facch.
di cui SJ
di cui SJ
Spese
Calc.
di cui SJ
Affitti e
Manut.
Appar.
di cui SJ
Mater.
inventar.
di cui SJ
Costr.
appar.
di cui SJ
TOTALE
Compet.
A
carico
di altri
Enti
di cui SJ
4,0
6,0
28,0
85,0
13,0
36,0
8,0
34,0
45,0
169,0
TOTALI 10,0
113,0
49,0
8,0
34,0
214,0
NB. La colonna A carico di altri enti deve essere compilata obbligatoriamente
Note:
Mod EC./EN. 4
Codice
Esperimento
Gruppo
ELETTRO
3
Rapp. Naz.: Franco Garibaldi
ISTITUTO NAZIONALE DI FISICA
NUCLEARE
A) ATTIVITA' SVOLTA FINO A GIUGNO 2003
− Partecipazione alla presa dati degli esperimenti: Distribuzione angolare della polarizzazione del protone nella fotodisintegrazione del
deuterio (E00−007), Struttura a corta distanza del Deuterone e Dinamica della reazione in 2H(e,e'p)n (E01−020), Misura delle funzioni di
struttura di spin del neutrone (3He) nella Regione risonante (E01−012), GDH a basso Q2 (E−97−110).
− Preparazione esperimento di spettroscopia degli ipernuclei (E−94−107). In particolare, messa a punto e commissioning del RICH.
− Costruzione di un nuovo radiatore e di una nuova serie di fotocatodi e relativi supporti per ottimizzare la distanza fili anodici−fotocatodo.
− Nuove evaporazioni di CsI sui fotocatodi. Tests con cosmici. Calcoli e simulazioni per la scelta di una target alternativa al Li−7 (problemi
legati alla difficoltà di inviare sulla stessa un fascio di 100 microAmperes). Il Cr−52 sembra un buona alternativa.
− Test di ottica con gli spettrometri HRS con connessione sotto vuoto con la camera di scattering (target di C−12), per valutazione della
risoluzione in momento del sistema senza setti.
− Preparazione dell'esperimento sulla GDH a basso Q2.
In particolare studio dell'ottica, del gradiente di campo residuo, del relativo impatto sulla target di He3 e dei corrector coils.
E' continuata la analisi dati degli esperimenti N−−> Delta ed elettroproduzione di K su protone in cui il gruppo ha un notevole impegno.
B) ATTIVITA' PREVISTA PER L'ANNO 2004
− Partecipazione alla presa dati dell'esperimento GDH a basso Q2 in cui il gruppo ha un grosso impegno (co−spokespersonship).
− Costruzione del data base ottico. Analisi dati. Fine commissioning RICH con cosmici.
− Installazione e commissioning in sala A dell'apparato per la spettroscopia degli ipernuclei, sistema target ad acqua, RICH, Cherenkov ad
aerogel etc. Preparazione presa dati.
− Mappatura del campo del secondo setto. Commisioning dei due setti magnetici. Costituzione del data base ottico.
− Presa dati. Riduzione dati. Inizio analisi dati. Partecipazione alla presa dati degli esperimenti sulle short rtange correlatoins a sulla DVCS.
− Preparazione presa dati esperimenti sulla violazione di parita' nello scattering elastico su d ed He−4. In particolare studio dell'ottica del
sistema setti + HRS.
C) FINANZIAMENTI GLOBALI AVUTI NEGLI ANNI PRECEDENTI
Anno
Missioni Missioni
finanziario interno estero
1990
1992
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
TOTALE
Mod EC. 5
In kEuro
Affitti e
Materiale
Materiale Costruz.
Trasp. e Spese
TOTALE
Manut.
di
inventar. apparati
Facch. Calcolo
Apparec.
consumo
0.0
11.8
5.1
10.3
10.3
10.8
4.1
3.0
3.0
15.0
8.0
8.0
50.0
113.6
84.6
129.1
167.8
107.9
59.9
57.8
71.7
224.0
105.5
62.5
35.1
23.2
30.4
59.9
83.1
54.2
21.6
23.7
20.6
80.0
47.0
35.0
0.0
7.7
9.2
7.2
9.2
6.1
2.0
0.0
2.0
7.0
5.0
2.0
41.3
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
15.4
18.5
13.4
3.0
17.0
12.9
4.1
7.7
25.8
63.0
40.0
30.0
0.0
229.7
50.0
159.0
326.4
609.4
8.7
0.0
0.0
0.0
0.0
0.0
141.8
404.5
192.7
368.5
613.8
801.3
100.4
92.2
123.1
389.0
205.5
137.5
89.4
1234.4
513.8
57.4
41.3
0
250.8
1383.2
3570.3
(a cura del rappresentante nazionale)
Codice
Esperimento Gruppo
ELETTRO
3
PREVISIONE DI SPESA
Piano finanziario globale di spesa
In KEuro
ANNI
Miss.
FINANZIARI interno
2004
2005
TOTALI
Mod EC./EN. 6
Miss. Materiale di Trasp. e Spese
estero.
cons.
Facch.
Calc.
10
0.0
113
0.0
49
0.0
8
0.0
10,0
113,0
49,0
8,0
0
0.0
Affitti e
Manut.
Appar.
0
0.0
Mater. Costr.
inventar appar.
34
0.0
34,0
0
0.0
TOTALE
Compet.
214.0
0.0
214,0
Struttura
BA
Codice
Esperimento
ELETTRO
Gruppo
3
N
RICERCATORE
Cognome e Nome
1
2
3
4
De Cataldo Giacinto
De Leo Raffaele
Lagamba Luigi
Marrone Stefano
Qualifica
Dipendenti
Incarichi
Affer.
al
gruppo
.
Art.
23
Ruolo
Ricerca Assoc
Ric.
P.O.
Dott.
AsRic
%
N
TECNOLOGI
Cognome e Nome
Qualifica
Incarichi %
Ass.
Ruolo Art. 23
Tecnol.
Dipendenti
20
40
30
30
3
3
3
3
N
1 Elettronica
Cognome e Nome
Qualifica
Incarichi
Dipendenti
Ruolo
Art.
15
Annotazioni:
mesi−uomo
1.0
1.0
Mod EC./EN. 7
%
Collab.
Assoc. tecnica
tecnica
SERVIZI TECNICI
Denominazione
TECNICI
0
0
0
0
Codice
Esperimento Gruppo
ELETTRO
3
MILESTONES PROPOSTE PER IL 2004
Data
completamento
Descrizione
30/06/2004
− Fine presa dati Ipernuclei (E−94−107)
31/12/2004
− Analisi preliminare esperimento GDH a basso Q2
Mod EC./EN. 8
Codice
Esperimento
Gruppo
FINUDA
3
Rapp. Naz.: Tullio Bressani
NUCLEARE
Tullio Bressani
TO
Fisica degli Ipernuclei
Linea di ricerca
Laboratorio ove
Sigla dello
esperimento
assegnata dal
laboratorio
L.N.F.
FINUDA
Collisore e+e− DAFNE
Acceleratore usato
Fascio
(sigla e
caratteristiche)
D2 (seconda zona di interazione) e+e− (510 + 510) MeV
K−stop + Nucleo Â® p− + Ipernucleo. Decadimenti dell'ipernucleo
Processo fisico
studiato
Apparato
strumentale
utilizzato
Spettrometro ad alta risoluzione in momento per p− e particelle cariche.Spettrometro per neutroni
BA, BO, LNF, PV, TO, TS
all'esperimento
TRIUMF (Canada), KEK (Giappone), GSI (Germania), Mainz (Germania)
Istituzioni esterne
almeno 2 anni
Durata esperimento
Mod EC. 1
Struttura
BA
Codice
Esperimento
FINUDA
Resp. loc.: Paticchio Vincenzo
Gruppo
3
In KEuro
IMPORTI
VOCI
DI
SPESA
Missioni a LNF (12 Rich x 3 mesi/u ) per sostenimento turno misura + manuntenzione
apparato + disinstallazione ( 6 mesi/u tecnici )
Parziali
Totale Compet.
SJ
SJ
150.0
150.0 0.0
Contatti ditte estere e colloqui scentifici Teorici e Sperimentali
15.0
15.0 0.0
Manutenzione Tof e microstrip
15.0
Magazzino LNF
15.0
30.0 0.0
Consorzio
Ore CPU
Spazio Disco
Cassette
0.0
0.0
0.0
0.0
0.0
0.0
Altro
Spares di elettronica e reintegro cassetti elettronici
10.0
10.0 0.0
0.0 0.0
Totale
205.0 0.0
Mod EC./EN. 2
A cura della
Comm.ne
Scientifica
Nazionale
Struttura
BA
Codice
Esperimento
FINUDA
Gruppo
3
Struttura
BA
Codice
Esperimento
FINUDA
Gruppo
3
Codice
Esperimento
Gruppo
FINUDA
3
NUCLEARE
In KEuro
Struttura Miss. interno Miss. estero.
di cui SJ
BA
BO
LNF
PV
TO
TS
TOTALI
di cui SJ
Materiale
di cons.
di cui SJ
Trasp.
e Facch.
di cui SJ
Spese
Calc.
di cui SJ
Affitti e
Manut.
Appar.
di cui SJ
Mater.
inventar.
Costr. appar.
di cui SJ
di cui SJ
150,0
18,0
20,0
30,0
268,0
60,0
15,0
3,0
15,0
5,0
31,0
7,0
30,0
1,0
92,0
3,0
95,0
22,0
1,5
5,0
10,0
2,5
27,5
5,0
46,5
34,0
546,0
76,0
243,0
6,5
125,5
20,0
20,0
A
carico
di altri
Enti
TOTALE
Compet.
di cui SJ
205,0
24,5
154,5
43,0
462,0
128,0
0,0
0,0
0,0
0,0
20,0 0,0
0,0
20,0 20,0 1017,0 20,0
Note:
Mod EC./EN. 4
Codice
Esperimento
Gruppo
FINUDA
3
NUCLEARE
Dall'inizio dell'anno e' iniziato il montaggio finale del rivelatore, per poter quindi effettuare il roll−in nella zona di interazione. Sono state
installate la beam−pipe ed il rivelatore di vertice e quindi tutto il rivelatore e' stato controllato prima dell'operazione conclusiva. Il roll−in e'
stato effettuato con successo alle fine di Aprile.
E' iniziato quindi un periodo di presa dati con raggi cosmici e magnete non energizzato per verificare l'allineamento di tutti i rivelatori, in
particolare del rivelatore di vertice, con risultati molto soddisfacenti.
Il magnete e' stato quindi energizzato ed e' iniziata una fase di calibrazione con raggi cosmici, prima dell'accensione della macchina. Finora
tutte le operazione si sono svolte con successo, con risultati a volte superiori a quelli attesi.
Da Luglio iniziera' la fase di presa dati con i bersagli selezionati.
GENNAIO−SETTEMBRE: manutenzione del rivelatore e smontaggio/rimontaggio della parte centrale, fuori fascio, per la sostituzione con il
nuovo set di bersagli previsto per la nuova presa dati. La scelta finale di tali bersagli verra' effettuata entro la fine del corrente anno, sulla
base dei risultati ottenuti con il primo set di bersagli. Si pensa comunque di privilegiare i numeri di massa medio−alti (89Y, 90V, La, Bi). Si
lavorera' per una settimana ogni cinque sul floor, per un totale di otto settimane.
Massiccia analisi dei dati raccolti nel 2003.
SETTEMBRE−DICEMBRE: presa dati con il nuovo set di bersagli, con circa 300 pb−1.
Anno
Missioni Missioni
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
TOTALE
Mod EC. 5
In kEuro
Affitti e
Materiale
Materiale Costruz.
Trasp. e Spese
TOTALE
Manut.
di
inventar. apparati
Facch. Calcolo
Apparec.
consumo
36.1
36.1
105.8
131.6
317.6
426.0
258.2
340.8
418.3
325.0
384.0
460.0
46.4
28.4
108.4
180.2
50.0
24.2
41.3
42.3
53.1
49.0
40.0
49.0
87.7
113.6
666.2
253.0
271.1
260.2
290.7
358.9
338.2
261.0
215.0
181.0
5.1
2.5
0.0
28.4
165.2
12.9
11.3
20.6
25.8
23.0
13.0
6.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
15.4
0.0
0.0
0.0
25.8
0.0
0.0
0.0
15.4
26.0
30.0
0.0
123.9
92.9
243.7
1495.1
353.7
509.7
245.8
385.7
80.5
95.0
70.0
114.0
3239.5
712.3
3296.6
313.8
0
112.6
3810
0.0
2324.0
397.6
1032.9
196.2
171.9
0.0
28.4
15.4
0.0
0.0
0.0
314.6
2597.5
1521.7
3121.2
1379.6
1404.9
847.3
1176.7
946.7
779.0
752.0
810.0
4166.4 15651.2
Codice
Esperimento
Gruppo
FINUDA
3
NUCLEARE
PREVISIONE DI SPESA
In KEuro
ANNI
Miss.
FINANZIARI interno
2004
2005
TOTALI
Mod EC./EN. 6
546
609.0
Miss.
estero.
76
91.0
1155,0 167,0
Materiale Trasp. e Spese
di cons.
Facch. Calc.
243
275.0
6.5
5.0
518,0
11,5
0
0.0
Affitti e
Manut.
Appar.
0
41.0
41,0
Mater. Costr.
inventar appar.
TOTALE
Compet.
125.5
108.0
20
0.0
1017.0
1129.0
233,5
20,0
2146,0
Struttura
BA
Codice
Esperimento
FINUDA
Gruppo
3
N
1
2
3
4
5
6
7
8
9
10
11
RICERCATORE
Cognome e Nome
D'Erasmo Ginevra
Dalena Barbaba
Disanto Daniela
Elia Domenico
Fini Rosa Anna
Lenti Vito
Manzari Vito
Pantaleo Ambrogio
Paticchio Vincenzo
Simonetti Giuseppe
Qualifica
Dipendenti
Incarichi
Affer.
al
. gruppo
%
3
3
3
3
3
3
3
3
3
3
3
30
70
70
30
30
50
30
30
50
70
50
N
Ruolo Art. 23 RicercaAssoc
P.A.
Dott.
AsRic
Ric.
Ric.
R.U.
I Ric
Ric.
D.R.
I Ric
Dott.
TECNOLOGI
Cognome e Nome
Qualifica
Incarichi
Ass.
Ruolo Art. 23
Tecnol.
Dipendenti
N
1
2
3
4
Cognome e Nome
Antuofermo Gaetano
Iacobelli Giuseppe
Sacchetti Michele
Vasta Pietro
0
0
Qualifica
Incarichi
Dipendenti
Ruolo
Art. Collab.
15 tecnica
CTer.
CTer.
O.T.
O.T.
Annotazioni:
mesi−uomo
1.0
Mod EC./EN. 7
%
Assoc.
tecnica
SERVIZI TECNICI
Denominazione
TECNICI
%
40
50
30
20
4
1.4
Codice
Esperimento
Gruppo
FINUDA
3
NUCLEARE
Data
completamento
Descrizione
15/09/2004
Completamento sostituzione bersagli e nuovo roll−in
23/12/2004
Completamento presa dati con il nuovo set di bersagli
23/12/2004
Analisi dei dati raccolti nel 2004, in stadio molto avanzato
Mod EC./EN. 8
Codice
Esperimento
Gruppo
HERMES
3
Rapp. Naz.: Salvatore Frullani − Nicola
Bianchi
NUCLEARE
Rappresentante nazionale:Salvatore Frullani − Nicola Bianchi
Struttura di appartenenza: ISS − LNF
Dinamica dei quark e degli adroni
Linea di ricerca
Laboratorio ove
Sigla dello
esperimento
assegnata dal
laboratorio
DESY/Amburgo
HERMES
HERA
Acceleratore usato
Fascio
(sigla e
caratteristiche)
fascio accumulato polarizzato di elettroni/positroni da 27.5 GeV
Funzioni di struttura di spin protone, neutrone, deutone e regole di somma.Funzioni di struttura trasversa del
nucleone. Funzioni di distribuzioni partoniche polarizzate. Elettroproduzione semi−inclusiva di iperoni mesoni.
Elettroproduzione esclusiva. Effetti nucleari.
Processo fisico
studiato
Apparato
strumentale
utilizzato
Bersaglio gassoso, polarimetri e spettrometro HERMES
LNF, Bari, Ferrara, Roma1−Gruppo Sanita'
all'esperimento
Armenia(Yer.),Canada(Alb.,Fraser,TRIUMF),Belgio(Gent),Cina(Beijng),
Germania(DESY,Zeuthen,Giessen,Erl.,Freib.,Munchen,
Regensb.),Giappone(Tokyo),Olanda(NIKHEF,Vrije),Polonia(Warshaw),Regno Unito(Glasgow),
Russia(Dubna,Moscow,St. Petersb.,Protv.),Usa(Argonne,Col.,Illin., MIT,Mich)
Istituzioni esterne
presa dati fino al 2006−2007, analisi dati fino al 2010
Durata esperimento
Mod EC. 1
Struttura
BA
Codice
Esperimento
HERMES
Gruppo
3
In KEuro
IMPORTI
VOCI
DI
SPESA
Parziali
SJ
Viaggi a Roma e Ferrara
Totale Compet.
SJ
4.0
4.0 0.0
Viaggi a Desy per turni, collaboration Meetings, analisi dati
40.0
40.0 0.0
Metabolismo e manutenzioni, costruzioni guide di luce per Recoil detector
5.0
5.0 0.0
0.0 0.0
Consorzio
Ore CPU
Spazio Disco
Cassette
Altro
0.0 0.0
0.0 0.0
Elettronica per prova di timing su scintillatori e guide
10.0
10.0 0.0
0.0 0.0
Totale
59.0 0.0
Mod EC./EN. 2
A cura della
Comm.ne
Scientifica
Nazionale
Struttura
BA
Codice
Esperimento
HERMES
Gruppo
3
Nel 2003 il Gruppo ha terminato lo studio di un rivelatore di neutroni per implementare
il Recoil detector. Lo studio è terminato nollo scorso Aprile allorchè il Council ha deciso di soprasedere a tale rivelatore per
problemi di spazio attorno al Recoil detector e per il costo elevato dello stesso neutron detector.
Dal prossimo settembre il gruppo assemblerà guide di luce per le SciFi del Recoil detector. Il gruppo partecipa alla analisi
dei dati a 12GeV per determinare
attenuazione di adroni in materia nucleare.
Struttura
BA
Codice
Esperimento
HERMES
Gruppo
3
Codice
Esperimento
Gruppo
HERMES
3
Bianchi
NUCLEARE
In KEuro
di cui SJ
BA
FE
ISS
LNF
TOTALI
di cui SJ
Materiale
di cons.
di cui SJ
4,0
15,0
3,0
16,0
40,0
220,0
25,0
280,0
5,0
76,0
4,0
34,0
38,0
565,0
119,0
Trasp.
e Facch.
di cui SJ
Spese
Calc.
di cui SJ
Affitti e
Manut.
Appar.
di cui SJ
Mater.
inventar.
di cui SJ
Costr.
appar.
di cui SJ
TOTALE
Compet.
A
carico
di altri
Enti
di cui SJ
19,5
10,0
38,0
8,0
30,0
59,0
349,0
40,0
379,5
19,5
86,0
827,5
0,0
0,0
0,0
0,0
Note:
Mod EC./EN. 4
Codice
Esperimento
Gruppo
HERMES
3
Bianchi
NUCLEARE
Prima e parziale presa dati con bersaglio polarizzato trasversalmente.
Presa dati con gas non polarizzati ad alta densita'.
Costruzione di celle. Produzione e analisi dati del bersaglio.
Manutenzione e gestione calorimetro, bersaglio ed elettronica MWPC.
Isolamento elettrico di tutti i partitori del Calorimentro.
Prove ottiche su aerogel. Test di gating a timing su PCOS.
Aggiornamento della Particle Identification dell'esperimento.
Nuova produzione dati con nuove costanti di calibrazione.
Studi di Data Quality. Studi di effetti di accettanza dello spettrometro.
Completamento delle simulazioni e dei test per il photon detector del Recoil Detector. Studio di un rivelatore a neutroni per il Recoil
Detector. Progetto di accoppiatori ottici per fibre. Progetto per la cella per il Recoil Detector.
Analisi dati per il calcolo della polarizzazione e delle frazione atomica dei bersagli di H e D. Completamento dell'analisi dati su : processi di
adronizzazione nel mezzo nucleare, misure inclusive b1 su deuterio polarizzato, elettroproduzione esclusiva di due pioni, polarizzazione
molecolare.
Drafting e pubblicazione di diversi articoli su risultati di HERMES, sulle caratteristiche della targhetta e su fenomenologia.
Completamenti presa dati con bersaglio polarizzato trasversalmente e con gas non polarizzati ad alta densita'. Costruzione di celle.
Produzione ed analisi dati del bersaglio. Manutenzione e gestione calorimetro, bersaglio ed elettronica MWPC.
Installazione del bersaglio e del Photon Detector per il Recoil Detector.
Prove di timing per fibre.
Produzione dati Montecarlo.
Completamento analisi dati in corso e relative pubblicazioni
Anno
Missioni Missioni
In kEuro
Affitti e
Materiale
Materiale Costruz.
Trasp. e Spese
TOTALE
Manut.
di
inventar. apparati
Facch. Calcolo
Apparec.
consumo
2003
25.0
410.5
90.0
5.0
0.0
0.0
37.0
55.0
622.5
TOTALE
25
410.5
90
5
0
0
37
55
622.5
Mod EC. 5
Codice
Esperimento
Gruppo
HERMES
3
Bianchi
NUCLEARE
PREVISIONE DI SPESA
In KEuro
ANNI
Miss.
FINANZIARI interno
2004
2005
2006
2007
2008
2009
2010
TOTALI
Mod EC./EN. 6
38
34.0
32.0
20.0
15.0
10.0
5.0
Miss.
estero.
565
525.0
525.0
450.0
300.0
250.0
200.0
154,0 2815,0
di cons.
Facch. Calc.
119
128.0
107.0
50.0
30.0
20.0
20.0
19.5
16.0
26.0
26.0
0.0
0.0
0.0
474,0
87,5
0
0.0
0.0
0.0
0.0
0.0
0.0
Affitti e
Manut.
Appar.
0
0.0
0.0
0.0
0.0
0.0
0.0
Mater. Costr.
inventar appar.
86
45.0
20.0
20.0
20.0
10.0
10.0
211,0
0
0.0
0.0
0.0
0.0
0.0
0.0
TOTALE
Compet.
827.5
748.0
710.0
566.0
365.0
290.0
235.0
3741,5
Struttura
BA
Codice
Esperimento
HERMES
Gruppo
3
N
Qualifica
Affer.
Incarichi
al
%
Cognome e Nome
gruppo
.
Art.
23
Ruolo
RicercaAssoc
1 De Leo Raffaele
2 Lagamba Luigi
3 Nappi Eugenio
P.O.
Dott.
D.R.
N
TECNOLOGI
Cognome e Nome
Qualifica
Incarichi
Ass.
Ruolo Art. 23
Tecnol.
Dipendenti
50
70
30
3
3
3
N
TECNICI
Cognome e Nome
1 Liberti Lorenzo
1 Elettronica
0
0
Qualifica
Incarichi
Dipendenti
Ruolo
Art.
15
Collab.
tecnica
Tecn.
Annotazioni:
mesi−uomo
1.0
1.0
Mod EC./EN. 7
%
Assoc.
tecnica
SERVIZI TECNICI
Denominazione
%
15
1
0.15
Codice
Esperimento
Gruppo
HERMES
3
Bianchi
NUCLEARE
Data
completamento
Descrizione
01/01/2004
Completamento costruzione del photon detector (LNF)
20/12/2004
Installazione del photon detector del Recoil detector (LNF)
20/12/2004
Installazione del bersaglio per Recoil detector (Fe)
20/12/2004
Fine presa dati con bersaglio trasverso (tutte le sezioni)
20/12/2004
20/12/2004
Completamento analisi dati su elettroproduzione esclusiva di pioni, su distribuzioni azimutali
non polarizzate, sulla funzione di struttura tensoriale b1, su fit di QCD, sugli effetti nucleari nella funzione di
frammentazione (tutte le sezioni)
Definizione di un possibile sviluppo su HERAIII
Mod EC./EN. 8
Codice
Esperimento
Gruppo
N−TOF
3
Rapp. Naz.: Nicola Colonna
NUCLEARE
Nicola Colonna
BA
Linea di ricerca
Laboratorio ove
Sigla dello
esperimento
assegnata dal
laboratorio
Misure di sezioni d'urto neutroniche
Esperimento CERN PS213
CERN − Neutron Time of Flight facility (n_TOF)
PS213
PS
Acceleratore usato
Fascio
(sigla e
caratteristiche)
Fascio di neutroni da 1 eV a 250 MeV, prodotti con fascio di protoni da 20 GeV/c su blocco di Piombo
Reazioni indotte da neutroni di interesse per l'Astrofisica e per applicazione agli Accelerator Driven Systems
(ADS) per la produzione di energia e per incenerimento delle scorie radioattive
Processo fisico
studiato
Apparato
strumentale
utilizzato
Rivelatori di neutroni, Calorimetro Gamma a BaF2
Bari, Bologna, Laboratori Nazionali Legnaro, Trieste
all'esperimento
Collaboratione n_TOF: CERN, IN2P3 (Fr), FZK (Ge), CEA (Fr), APC (Gr), TUW (Au), CIEMAT (Sp), etc...
Istituzioni esterne
3 anni (2004−2006)
Durata esperimento
Mod EC. 1
Struttura
BA
Codice
Esperimento
N−TOF
Resp. loc.: Giuseppe Tagliente
Gruppo
3
In KEuro
IMPORTI
VOCI
DI
SPESA
Parziali
Totale Compet.
SJ
Riunioni Collaborazione Nazionale
3.0
Test Rivelatori
4.0
Discussione analisi dati
3.0
Riunioni Collaborazione + Riunioni Workpackages + Riunioni Collaboration Board (Resp.
Naz.)
7.0
Setup apparati sperimentali + Turni Misura
7.0
65.0
SJ
10.0 0.0
79.0 0.0
Discussione analisi dati
Metabolismo laboratorio locale
4.0
Maintanance and Operation costs (CERN)
22.0
26.0 0.0
Consorzio
Ore CPU
Spazio Disco
Cassette
0.0
0.0
0.0
0.0
0.0
0.0
4.0
0.0
Altro
Potenziamento strutture di calcolo di esperimento (PC per analisi e simulazioni)
4.0
Completamento calorimetro Gamma e del DAQ: contributo aggiuntivo dovuto al ritiro della 25.0
partecipazione dell'Istituto KTH di Stoccolma.
5.0
Completamento moduli di alimentazione Calorimetro (sistema SY1527)
30.0 0.0
Totale
149.0 0.0
Mod EC./EN. 2
A cura della
Comm.ne
Scientifica
Nazionale
Struttura
BA
Codice
Esperimento
N−TOF
Gruppo
3
Struttura
BA
Codice
Esperimento
N−TOF
Gruppo
3
Codice
Esperimento
Gruppo
N−TOF
3
NUCLEARE
In KEuro
di cui SJ
BA
BO
LNL
TS
TOTALI
di cui SJ
Materiale
di cons.
di cui SJ
Trasp.
e Facch.
di cui SJ
Spese
Calc.
di cui SJ
Affitti e
Manut.
Appar.
Mater.
inventar.
di cui SJ
di cui SJ
Costr. appar.
di cui SJ
10,0
4,0
4,0
6,0
79,0
12,0
20,5
38,0
26,0
2,0
6,0
4,0
4,0
30,0
5,5
4,0
10,0
24,0
149,5
38,0
13,5
40,0
TOTALE
Compet.
A
carico
di altri
Enti
di cui SJ
149,0
18,0
46,0
52,0
0,0
0,0
0,0
0,0
265,0
Note:
Mod EC./EN. 4
Codice
Esperimento
Gruppo
N−TOF
3
NUCLEARE
Da Maggio a Ottobre 2002 sono state effettutate numerose misure di sezioni d'urto di cattura e di fissione. In particolare sono state studiate
le reazioni di cattura su 151Sm, 232Th, 204,205,206Pb, 209Bi, e quelle di fissione su 232Th e 234U. Il gruppo INFN ha effettuato l'analisi
della reazione 151Sm(n,gamma), ormai completata, e sta partecipando all'analisi della 206Pb(n,gamma). Inoltre l'INFN ha contribuito alla
caratterizzazione del fascio di neutroni, in particolare a riguardo della risoluzione e del flusso.
A Maggio 2003 è stata misurata la reazione 139La(n,gamma) di interesse per l'Astrofisica.
Nel corso dei primi mesi del 2003 sono state completate le simulazioni della risposta del calorimetro per gamma, e costruito il prototipo di
una capsula in fibra di carbonio additivata con 10B, per la soppressione del background indotto dai neutroni diffusi dal bersaglio.
Nel corso dei primi mesi del 2004 sarà completata l'installazione ed il test del calorimetro per gamma a BaF2. A giugno 2004 riprenderanno
le misure di reazioni indotte da neutroni presso la facility n_TOF. La nuova campagna di misure, che si estenderà per tutto il periodo di
operazione del PS, riguarderà lo studio delle sezioni d'urto di cattura con il calorimetro. Saranno studiati isotopi di interesse per gli ADS, in
particolare 233U, 237Np, 240Pu, 241Am, 245Cm. Le misure rivestono particolare importanza nel campo della produzione di energia e per
la trasmutazione delle scorie radioattive.
Proseguirà l'analisi dei dati raccolti nelle campagne di misura del 2002 e 2003.
E' stata proposta l'estensione di un anno del contratto EC del V Programma Quadro FIKW−CT−2000−00107 (n_TOF−ND−ADS), che
avrebbe dovuto concludersi entro fine 2003. Pertanto, il 2004 rappresenta l'ultimo anno del suddetto contratto.
Nel corso del 2004 avrà luogo la fase di negoziazione di un nuovo contratto con la Commissione Europea nell'ambito del VI Programma
Quadro per la Ricerca.
Anno
Missioni Missioni
In kEuro
Affitti e
Materiale
Materiale Costruz.
Trasp. e Spese
TOTALE
Manut.
di
inventar. apparati
Facch. Calcolo
Apparec.
consumo
2003
25.0
99.0
50.5
0.0
0.0
0.0
7.0
41.0
222.5
TOTALE
25
99
50.5
0
0
0
7
41
222.5
Mod EC. 5
Codice
Esperimento
Gruppo
N−TOF
3
NUCLEARE
PREVISIONE DI SPESA
In KEuro
ANNI
Miss.
FINANZIARI interno
2004
2005
2006
TOTALI
Mod EC./EN. 6
estero.
cons.
Facch.
Calc.
24
24.0
24.0
149.5
78.0
147.0
38
14.0
14.0
72,0
374,5
66,0
0
0.0
0.0
0
0.0
0.0
Affitti e
Manut.
Appar.
0
0.0
0.0
Mater. Costr.
inventar appar.
TOTALE
Compet.
13.5
8.0
0.0
40
20.0
20.0
265.0
144.0
205.0
21,5
80,0
614,0
Struttura
BA
Codice
Esperimento
N−TOF
Gruppo
3
N
1
2
3
4
5
6
Qualifica
Affer.
Incarichi
al
%
Cognome e Nome
gruppo
.
Art.
23
Ruolo
Ricerca Assoc
Bisceglie Emanuele
Colonna Nicola
De Leo Raffaele
Marrone Stefano
Tagliente Giuseppe
Terlizzi Rita
B.UE
Ric.
P.O.
AsRic
Ric.
Dott.
N
TECNOLOGI
Cognome e Nome
Qualifica
Incarichi
Ass.
Ruolo Art. 23
Tecnol.
Dipendenti
100
100
10
70
100
100
3
3
3
3
3
3
N
TECNICI
Cognome e Nome
1 Sacchetti Michele
2 Vasta Pietro
1
0
0
Qualifica
Incarichi
Dipendenti
Ruolo
Art.
15
Collab.
tecnica
O.T.
O.T.
Annotazioni:
mesi−uomo
1.0
Mod EC./EN. 7
%
Assoc.
tecnica
SERVIZI TECNICI
Denominazione
Officina Meccanica
%
30
20
2
0.5
NUCLEARE
Codice
Esperimento
Gruppo
N−TOF
3
Data
completamento
Descrizione
Maggio 2004
Montaggio e test del Calorimetro Gamma a BaF2
Dicembre 2004
Misure di sezioni d'urto di cattura su 233U, 237Np, 240Pu, 241Am, 245Cm
Giugno 2004
Analisi dati reazioni di cattura su 139La, 187Os, 93Zr (reazioni misurate nel 2003)
Mod EC./EN. 8
Codice
Esperimento
Gruppo
N2P
3
Rapp. Naz.: Giuseppe Viesti
Giuseppe Viesti
PD
NUCLEARE
PROGRAMMA DI RICERCA
A) INFORMAZIONI GENERALI
Reazioni nucleari indotte da ioni leggeri e pesanti
Linea di ricerca
Laboratorio ove
Sigla dello
esperimento assegnata dal
laboratorio
LNL,PAVIA,CYCLOTRON Institute TEXAS A&M University
N2P
TANDEM XTU−ALPI LINAC, Superconductive Cyclotron K500 TAMU; Sorgenti
Acceleratore usato
elettroniche di neutroni.
Fascio
(sigla e caratteristiche)
Ioni Pesanti (40Ar − 238U) ad energie < 100 MeV/A (TAMU).
Protoni e Deutoni 100 MeV (Laboratorio da definire).
Neutroni 14 MeV (Pavia) Neutroni 2.6 MeV (LNL).
Ioni Pesanti ad energie < 20 MeV/A (LNL).
Processo fisico
studiato
Apparato strumentale
utilizzato
all'esperimento
Istituzioni esterne all'Ente
partecipante
Produzione di neutroni indotta da ioni leggeri su targhette spesse.Produzione di nuclei
esotici (neutron−rich) in collisione ione−ione ed emissione ritardata di neutroni. Dinamica
della fissione nella regione dei nuclei super−pesanti.
Proton Recoil Telescope.Spettrometro BIGSOL e calorimetro neutronico. Punto misura
spettroscopia neutronica ad LNL.
Ba, LNL, Pd, Pv.
Cyclotron Institute TAMU. BARC, Mumbai, India.IOP, Bhubaneswar, India.
2004 − 2006
Durata esperimento
B) SCALA DEI TEMPI : piano di svolgimento
PERIODO
2004
2005
ATTIVITA' PREVISTA
Progettazione e costruzione del Proton Recoil Telescope e del Calorimetro Neutronico,
campagna di misure allo spettrometro BIGSOL, studi della dinamica della fissione ai LNL.
Test sotto fascio del Proton Recoil Telescope e del Calorimetro Neutronico, continuazione della
campagna di misure allo spettrometro BIGSOL e degli studi ai LNL.
Campagnia di misure sulla produzione neutronica in target spessi indotta da ioni leggeri, studi di
2006
Mod EN. 1
emissione neutronica ritardata a BIGSOL. Conclusione della campagna di misure sulla dinamica
della fissione ai LNL.
Struttura
BA
Codice
Esperimento
N2P
Resp. loc.: D'Erasmo Ginevra
Gruppo
3
In KEuro
IMPORTI
VOCI
DI
SPESA
Parziali
SJ
Collaboration meeting 1KE x 6R
6.0
Alpi − LINAC Runs o,1 KE x 20gg x 6R
12.0
Test di laboratorio PV e LNL: 0.1KE x 15gg x 3R
4.5
Tamu: 2,5KE x 3sett x 1R
7.5
Preparazione dell'esperimento con neutroni 2,5 KE x 1m x 1R
2.5
Materiale per l'esperimento LNL
5.0
Totale Compet.
SJ
22.5 0.0
10.0 0.0
5.0 0.0
0.0 0.0
Consorzio
Ore CPU
Spazio Disco
Cassette
Altro
0.0 0.0
0.0 0.0
Elettronica di Fon−End
48.0
Computer e memoria di massa per AD
3.0
51.0 0.0
0.0 0.0
Totale
88.5 0.0
Mod EC./EN. 2
A cura della
Comm.ne
Scientifica
Nazionale
Struttura
BA
Codice
Esperimento
N2P
Gruppo
3
(*) Sostituzione dell’ elettronica di Front−end per il punto misura BARI al
Tandem−Linac di Legnaro
Motivazioni per la sostituzione dell’hardware di acquisizione dati e dell’elettronica, al di là
della ben nota necessità di sostituire il computer utilizzato, ancora di tipo MicroVax.
Tutto parte dalla progressiva e veloce obsolescenza dei moduli GANELEC che realizzano il
doppio integrale di carica, finalizzato alla PSD dei rivelatori di neutroni, non più commercializzati.
Con il ritmo di autofagocitamento dei pezzi di ricambio fin qui sperimentato in fase di
riparazione, non possiamo dare per esistenti su tutto il triennio della proposta N2P dei moduli in
questione e, pertanto, viene presentata sin da subito una proposta per la loro sostituzione.
Detta sostituzione ha, al momento, una sola ipotesi di svolgimento: usare dei moduli VME
commercializzati dalla CAEN (unica produzione esistente di integratori di carica a gates
indipendenti con relativi generatori di gates), il che impone che nel prossimo sistema di
acquisizione dati il sistema VME venga immediatamente associato al sistema CAMAC..
Il nostro modo di affrontare la cosa è stato pensare ad un nuovo sistema di acquisizione dati
(programma MIDAS di Vancouver) basato su un PC con scheda PCI che colloquia tramite una fibra
ottica con una interfaccia VME che governa un crate VME 6U, dove trovano collocazione i moduli
CAEN per la doppia integrazione di carica ed un Branch Driver da VME a Camac, a cui aggiungere
tutto il resto del Camac finora utilizzato.
In conclusione la richiesta dell’hardware di N2P dovrebbe contenere quanto segue:
1) Computer (s) e Data Recording: 10 k€
2) Interfacciamento PCI−VME: SBS 617 (opt. 620) 4 k€
3) Crate VME 6U : 8 k€
4) VME to Camac Branch Driver (CBD 8210 della CES) 4 k€
5) 8 * Caen V486 (Gate and Delay Generators a canali
indipendenti) : 33 k€
6) 2 * Caen V862 (Integratori di Carica a gates ind.) 12 k€
per un totale di 71 k€ di cui possono essere rimandati al secondo anno il 50% delle voci 5) e
6) pari complessivamente a circa 23 k€.
Struttura
BA
Codice
Esperimento
N2P
Gruppo
3
Codice
Esperimento Gruppo
N2P
3
Rapp. naz.: Giuseppe Viesti
In KEuro
Struttura
Miss. interno Miss. estero.
di cui SJ
di cui SJ
Materiale
di cons.
di cui SJ
7,0
22,5
9,5
13,5
2,5
10,0
20,0
37,5
5,0
5,0
5,0
10,0
TOTALI 52,5
70,0
25,0
PV
BA
LNL
PD
Trasp.
e Facch.
di cui SJ
2,5
2,5
Spese
Calc.
di cui SJ
Affitti e
Manut.
Appar.
Mater.
inventar.
di cui SJ
di cui SJ
Costr. appar.
di cui SJ
8,0
TOTALE
Compet.
A
carico
di altri
Enti
di cui SJ
3,0
51,0
8,0
16,0
30,0
15,0
25,5
88,5
75,0
92,0
78,0
53,0
281,0
Note:
Mod EC./EN. 4
Nuovo esperimento Gruppo
N2P
3
PROPOSTA DI NUOVO ESPERIMENTO
C'è un file allegato.
Mod EN5
Proposal N2P
New experimental activities in the field of
Nuclear Physics with Neutrons
The physics case
Padova June, 2003
Part A: Neutrons for Radioactive beam production
1 Introduction
Recently, new interest in various applications of medium and high-energy neutron beams has
developed.
For example, future nuclear energy production will rely on generally well accepted ways of
waste disposal and a solution to the inherent safety problem of critical reactor design. New concepts
have been proposed which address these problems, such as accelerator driven sub-critical fission
reactors or transmutation of radioactive waste [1,2]. These concepts require new neutron interaction
data in the range between 20 and several hundred MeV.
Moreover, cancer therapy with neutron, proton and ion beams, the so-called hadron therapy,
will require precise dosimetric methods for energies up to several hundred MeV [3]. This topic is
nowadays of particular interest to INFN, after the project for the National Centre for Hadron
therapy (CNAO) to be built in Pavia has been approved.
Radiation exposure of aircraft crews and staff of high-energy accelerator facilities occurs to a
large extent through neutrons in this energy range [4,5]. The development of dosimetric methods in
these fields requires precisely specified quasi-monoenergetic neutron beams.
Finally, projects related to the production of radioactive beams for fundamental and applied
physics would also greatly benefit from the knowledge of cross sections for neutron production.
For all the above-mentioned points, the specification of neutron beams involves several
dedicated measurements of the beam characteristics including the total fluence, measured with
respect to known standard cross-sections and the energy spectrum and angular distribution of the
emitted neutrons.
We present in this chapter the proposal for a campaign of measurements related to the latter
point and, more precisely, to the SPES project. To perform such measurements, a new neutron
detector will be designed and realized. As detailed in the following, we plan in parallel to verify the
possibility of using such new tools also in connections with other fields especially in relation with
the CNAO project in Pavia.
2 Neutrons beams for RNB production
The production of radioactive beams for nuclear structure experiments is a priority of the
physics community. In particular, special emphasis has been set on the availability of neutron-rich
beams from few MeV/A up to 20 MeV/A. This will open new possibilities for experimental studies
of neutron-rich nuclei employing different reaction mechanisms such as Coulomb excitation,
inelastic scattering, single and multiple nucleon transfer, fusion reactions, etc. Such reactions not
only provide valuable nuclear structure information but they also allow exploring new nuclei very
far from the stability valley. Beams of neutron-rich nuclei will offer better chances to synthesize
heavy elements because the fused system will be closer to the stability line with higher survival
probability.
In addition to pure nuclear structure aspects, radioactive beams will have a number of
applications e.g., at very low energy (traps for fundamental tests on symmetries in decay
spectroscopy), at low energy (reactions of astrophysical interest performed in reverse kinematics).
As for interdisciplinary applications the availability of intense neutron fluxes will allow specific
programs in the field of cancer therapy and material sciences.
In this context, SPES (Study for Production of Exotic Species) [6] has been initiated at the
Laboratori Nazionali di Legnaro to investigate the feasibility and define a technical concept of a
radioactive beams facility, as a first step toward the planned european facility EURISOL. SPES will
use a primary beam of protons that will be available from the linac driver of the waste management
project TRASCO [7]. A 100 MeV proton beam with 1 mA intensity will be diverted from the linac
for radioactive beam production. The concept of a two step reaction has been introduced by the
Argonne Laboratory [8]. The beam power dissipation, essentially due to electronic stopping power,
occurs in a massive target called converter, in which beam and reaction products are stopped and do
not diffuse out owing to the relatively low temperature. The only escaping radiations are thus
gamma-rays and neutrons. The energetic neutrons are used to fission natural uranium in a target
placed downstream of the converter.
2a. Cross-section for nuclide production
In the concept of n-induced fission chosen for SPES, neutrons are produced by stopping a light, p or
d, beam in a thick converter. The neutron energy spectrum impinging on the target influences the
distribution of fission products. Slow neutrons lead to an asymmetric mass distribution with a deep
valley in the region of equal mass splits. Faster neutrons increase the fission cross-section and open
new channels (see Fig. 1). The symmetrical region is nearly filled and the mass distribution extends
further out of the light (A=80) and heavy (A=160) regions than with thermal neutrons. The fission
cross section is maximum for neutrons of 40 MeV. This is about the average neutron energy
generated by deuterons of 100 MeV on various thick targets. With 100 MeV protons the average
neutron energy is expected to be slightly lower.
Fig. 1 Mass cross sections for fission of Uranium by the neutrons created by 55 MeV p + 13C and
50 MeV d + 12C. The dashed lines are shown as an indication of the mass distributions for monoenergetic neutrons (energies in MeV) from Ref. [9].
An important parameter is also the production of neutrons per incident projectile. It strongly
increases with the projectile energy up to 100 MeV. Then a slowing down leading to a possible
saturation has been observed for deuterons. Very few works have been devoted to the production of
short-lived neutron-rich nuclei, those to be among the radioactive beams, by energetic neutrons. In
the frame of SPIRAL-II and SPES, experiments were recently performed by using on-line mass
separation with the IGISOL ion-guide technique. This method is based on the stopping of fission
fragments in a He atmosphere leading to ions mostly left in a 1+-charge state. The ions are
transported by the He flow and guided by an electric field to the electromagnetic separator. The
method being fast and universal with respect to the elements delivered is very well suited for cross
section measurements. In these experiments the neutrons were generated by 50 MeV d + 12C and 55
MeV p +13C reactions. The energy spectra of the neutrons impinging on the uranium targets are
shown in Fig. 2. They have the form of an evaporation spectrum. The spectrum generated by d +
12
C has an extra bump due to the break-up of the deuteron and (d,n) stripping reaction which is
contributing in the 20 degrees forward cone. The spectra have rather similar average energies and
the fluxes are in a ratio of 2.5. This small factor shows that protons are suitable as projectiles for
high intensity beams.
Fig. 2 Spectra for 50 MeV d + 12C and 55 MeV p + 13C of neutrons reaching the uranium targets
in the measurements of nuclidic cross sections. The spectra have been calculated by integration of
the n(θ,E) distributions [10,11] on the solid angle covered by the targets. The ordinate is 1000
times the number of neutrons per incident projective in a 1 MeV interval. The total neutron fluxes
are 0.029 and 0.0012 per proton, respectively. The different behaviour at low energy might reveal a
technical problem of energy threshold that should not occur anymore with the proposed detector.
The cross sections for nuclides have been reported in refs. [12,13]. Both reactions are comparable
with respect to magnitude and width of the distributions. Fig. 3 shows the cross sections for Kr and
Xe for various production schemes. The experimental number of ions measured by photo-fission
[14] are shown for comparison (on an relative scale). They suggest that the centre of the isotopic
distribution in photo-fission is intermediate between the one of p and n-induced fission. Clearly, ninduced fission produces the most n-rich distributions.
Fig. 3 Cross sections for Kr and Xe isotopes for 25 MeV protons on Uranium target, neutrons
generated in 50 MeV p on 12C converter, and 55 MeV p on 13C converter. For comparison the
circles show the experimental number of ions (in 3 105 units) separated per µC of 50 MeV electron
beam generating bremsstrahlung in a W converter. From ref. [14].
2b. Experimental neutron production and measurement
The fast neutron spectrum has to be characterised for various reactions, i.e. projectiles, beam
energies and types of converter material. In addition, physical and chemical properties of converters
must be considered explicitly. While Be has been identified as the best neutron emitter in terms of
the ratio n/projectile, it has physical properties (low melting point, toxicity) that could be
problematic in an actual converter in a hot and radiative environment. For this reason other
materials have been or will be tested in a near future. As mentioned above, 13C in form of powder
has been studied. Its neutron emission is globally lower by 30 % than the one of Be but is less
reduced in the forward direction which is the one of more practical interest. Recently, 13C has been
made available in form of graphite. The Glas carbon and B4C are currently tested for their
resistence to long term heat load at Novosibirk where they are submitted to heavy electron
bombardment [15].
Neutron angular and energy distributions n(E,θ) have been measured by the TOF method for Be at
113 MeV proton energy, indeed close to the design energy for SPES [16]. However, other
converters presumably suitable for SPES have not been studied at this energy. In Fig. 4 the
available data on the neutron yield are reported for Carbon and Beryllium targets and p and d
projectiles as a function of the bombarding energy. A neutron to proton ratio (n/p) of 2.2% has been
measured at 30 MeV. According to simulations performed with the MCNPx code, at 100 MeV
bombarding energy this ratio could increase to about 20%.
Figure 4. Neutron yields produced in thick
Ref. [10].
12,13
C and 9Be targets measured at zero degrees. From
3. Proposed neutron detectors development
In the measurements of the neutrons spectra for exotic beam production, liquid scintillators are
currently used. They are chosen since able to discriminate neutrons from gamma-rays. The method
used is pulse-shape discrimination (PSD). It exploits the different rise-times of the pulses generated
by charged particles (the n,p scattering mainly) of by photons (Compton scattering). The
measurements are time consuming due of the large distance (thus low efficiency) needed for the
TOF. The relative accuracy on the energy indeed scales like the inverse of the distance. Moreover,
the tolerable reaction rate has to be kept low enough to avoid random coincidences and the overlap
of arrival of slow and fast neutrons created by neighbouring accelerator pulses. These constraints
are drastic. As an example, for a measurement of neutrons generated by 100 MeV protons on 13C
planned by the LNL group, the required beam time is a week with a beam current of 105 protons/s.
The proposed detector shall drastically reduce the required beam time owing to the shorter distance
and its capability to effectively use the full intensity delivered by the accelerator. It will become
possible to measure detailed angular and energy neutron distributions for various converters, at
various projectile energies, with beam time requests acceptable with the schedule of accelerators.
Furthermore, in experiments at high energy with deuteron beam performed for SPIRAL-II at the
KVI Groningen gamma-rays have been observed with the TOF time structure of neutrons [18], due
to the opening of the inelastic excitation of the carbon nuclei in the scintillator. These difficulties
should be eliminated with the proposed detector since the proton energy and its scattering angle will
be recorded, thus allowing exact reconstruction of the neutron energy.
We propose to built a new neutron detector to be used for the determination of the optimum
neutron flux for radioactive beam production. The detector will consist in a thin plastic (n,p)converter followed by a position-sensitive gas detector telescope made of Multi-wire proportional
counters (MWPC) backed by a thick scintillation detector. In this way the emission angle and the
energy of the recoiling proton emerging from the plastic foil after the (n,p) reaction can be
measured allowing the full reconstruction of the incident neutron energy. The advantages of this
detector are that it can be placed closer to the target thus compensating for its lower intrinsic
efficiency with respect to thicker conventional scintillators, and can work with higher counting
rates. This type of detectors has been recently used in the neutron energy range 10-200 MeV [1921].
MWPC1
MWPC2
Shadow bar
MWPC3
neutron
proton
Active converter
STOP Scint
Fig.5. Schematic view of the Proton Recoil Telescope (with the elements aligned with the neutron
beam).
The conceptual scheme of the proposed detector will be the following:
1) An iron shadow bar will be used to shield partially the telescope from scattered particles , as
shown in Fig. 5. The length of the collimator is about 50 cm;
2) We will use a fast plastic scintillator (type NE102A) as active neutron converter. Such a
type of converter can be thicker with respect to the usual value of 1 mm for passive foils
since the proton energy loss in the converter will be used to correct the measured energy.
3) The emission point of the proton is measured in the front MWPC2 system. The use of an
additional MWPC1 as veto has to be discussed.
4) The back part of the telescope will placed off the neutron beam at about 20 cm distance, to
reduce the number of hits on the thick stop scintillator used to measure the proton recoil
energy. The first section of the back part is made by a second MWPC3 used to define the
impact point. Data from the MWPC tracking system will be used to identify the angle of the
scattered proton with respect to the incoming neutron.
5) The last part of the telescope is made by an organic scintillator thick enough to stop the
protons and measure their energy.
The selection of the scintillation material will be guided by the following requirements:
a) Thickness sufficient to stop the protons;
b) Fast scintillation response and possibility of performing particle discrimination by
pulse shape analysis;
c) Minimisation of the reaction losses in the scintillator [22].
Proposed time-scale of the project:
Task Task
#
Description
1
Definition of
neutron detector
2
Monte Carlo
simulations
3
Design and
production of
mechanics
4
Assembly of the
telescope
components
5
Definition of readout
6
Procurements of
electronics
7
Test with sources
and calibration with
14 MeV neutrons
8
Transport to the
laboratory
9
Measurement
campaign
10
Data analysis
11
Definition of other
fields of application
Q104
Q204
Q304
Q404
Q105
Q205
Q305
Q405
Q106
Q206
Q306
Proposed Milestones
Milestone
#
1
2
3
4
5
6
7
Date
30-June-04
31-Dec-04
30-March-05
30-Sept-05
31-Dec-05
30-June-06
31-Dec-06
Design of the Proton Recoil Telescope
Selection of the Laboratory for the experimental campaign
Proton Recoil Telescope in operation at LNL or Pavia
End of the commissioning of the Proton Recoil Telescope
Proton Recoil Telescope installed in the Laboratory
Completion of the p+13C measurements
Completion of the p+13C data analysis
Q406
References
[1] C. Rubbia et al., Conceptual design of a fast neutron operated highpower energy amplifier,
CERN/AT/95-44(ET), 1995.
[2] C.D. Bowman et al., Nucl. Instr. Meth. A320 (1992) 336.
[3] see T. Kato et al., Nucl. Instr. Meth. A480 (2002) 571.
[4] U.J. Schrewe, Nucl. Instr. Meth. A422 (1999) 621.
[5] U.J. Schrewe, Radiat. Prot. Dosim. 91 (2000) 347.
[6] A. Bracco and A. Pisent, SPES - Technical Design for an Advanced Exotic Ion Beam Facility at
LNL - LNL-INFN (REP) 181/02 (2002).
[7] A. Pisent et al. "TRASCO 100 MeV High Intensity Proton Linac ". Proceedings of the 2000
European Particle Accelerator Conference, EPAC 2000, Vienna, Austria 26-30 June, 2000.
[8] J. Nolen, Proc. Third Inter. Conf. On Radioactive Nuclear Beams, East Lansing, Michigan,
USA, May 24-27, 1993, edited by D.J. Morrisey, (Frontières, Gif sur Yvette, 1993), p. 111.
[9] V.A. Rubchenya et al., in Proceedings of the 2nd Int. Workshop on Nuclear Fission and Fissionproduct Spectroscopy, Seyssins, France, 1998 and Proceedings of the 2nd Int. Conf. On Fission and
Neutron-Rich Nuclei, St. Andrews, Scotland, 1999
[10] Z.Radivojevič et al. Nucl. Inst. Meth. B183 (2001), 212
[11] Z.Radivojevič et al. Nucl. Inst. Phys. Methods B194 (2002), 251
[12] G. Lhersonneau et al. Eur. Phys. J. A9, (2000), 385
[13] L.Stroe et al., Eur. Phys. J. A , in print
[14] F. Ibrahim et al., Eur. Jour. Phys. A 15 (2002) 357
[15] O. Alyakrinskiy et al, LNL Annual Report 2002
[16] M.M. Meier et al. Nucl. Sci. Eng. 102 (1989), 310
[17] C. Lau et al., Production of neutron-rich isotopes at PARRNe, proceedings of EMIS-14, March
23-28th 2002, Vancouver
[18] S. Brandenburg, KVI Groningen, Private communication
[19] M. Baba et al., Nucl. Inst. Meth. A428 (1999), 454
[20] T. Miura et al., Nucl. Inst. Meth. A493 (2002) 99
[21] V. Dagendorf et al., Nucl. Inst. Meth. A469 (2001) 205
[22] V. Avdeichikov et al., Nucl. Inst. Meth. A437 (1999) 424 and references therein.
Part B: Delayed Neutron measurements
B1. Introduction
The beta-delayed neutron (DN) emission is a well-known phenomenon that is present in the
region of fission products. Beta-delayed neutrons are emitted from an excited state above the
neutron separation energy (Sn) in the emitter. This state is first populated by beta decay of the
precursor nucleus. This process is governed by the weak interaction and is accordingly slow on the
nuclear timescale.
The study of beta-delayed emitters produced in fission reactions has received a growing
interest, thanks to the interest in the structure of neutron-rich nuclei, especially those that play a
relevant role in nuclear astrophysics (see refs. [1,2]). This growth of interest is demonstrated by a
large number of new experimental studies performed at major RIB facilities (CERN-ISOLDE,
GANIL-LISE, GSI-FRS) (refs. [3-7]).
It is worth mentioning that DN data are also relevant for nuclear waste managements and for the
energy amplifier project (see [1]).
The interest in beta-delayed neutrons has been motivated also by the possibility of using such
phenomenon for non-destructive inspection of fissile material (refs.[8-11]). In particular, betadelayed neutrons are now proposed as a tool to determine the presence of Special Nuclear Material
(235U, 239Pu…) in cargo containers [11]. In this case, the yield of delayed neutron emitted from the
interrogation of different material with photons of energy 6-10 MeV is used to discriminate the
presence of SNM inside containers during standard inspection performed with imaging techniques.
Measurements at different photon energies are used to distinguish the type of hidden SNM. In this
application, it is of paramount importance to define the parameters of the LINAC used for
producing the photon beams by bremsstrahlung in a heavy metal target. In particular, the time
window for counting the delayed neutrons is determined by the LINAC duty-cycle and depends on
the average decay time of the neutron rich fission fragments that are produced.
The observables that fully define the DN decay process are the lifetime for the beta decay from
the parent nucleus, T1/2 , the neutron decay probability, Pn, and the neutron spectrum. Hirsch et al
have calculated mean energies and decay probability values for about 150 short-lived isotopes in
ref.[12]. Those data were an essential input parameter for heat calculations for nuclear reactors. The
state-of-the-art in the DN field is summarized in ref. [13].
B2. Nuclear structure with beta-delayed neutrons
Nuclear structure studies are usually carried out after on-line separation (either with recoil
separators with a separation time scale down to the µs or the slower but more efficient ISOL
separators as envisaged for SPES). One distinguishes the light-mass region where excitation
energies are high and level densities low from the high-mass region where it is the opposite. In the
first case it is possible to identify the well-separated levels that can be resolved individually.
Neutron spectroscopy is usually performed by the time of flight method using scintillator detectors.
In the second case only properties averaged over an interval of excitation energy can be established.
It makes sense to give up the information on energy and increase the detection efficiency. Thus
many studies were performed with 3He counters based on thermalisation of neutrons. In both cases
the occurrence of a decay is established by the detection of the beta particle emitted by the
precursor. Neutrons and gamma rays are then recorded. In some cases beta-delayed neutron decay
of a precursor with A+1 can access a different spin window in the daughter nucleus than the beta
decay of the A parent and, this way, yield complementary information on level spin and parities
based on transition selection rules. The decay lifetime is a key parameter for structural studies and
applications. Understanding the missing strength (quenching) of the Gamow-Teller decay with
respect to calculations is still an open issue.
As an example, the decay scheme of the neutron-rich fission product 135Sn [14] is shown
in Fig.1. The levels in the daughter 135Sb at excitation energy above the neutron separation energy
(Sn=3100 keV) decay by emitting neutrons and populate states in the final nucleus 134Sb. The
lifetime of 135Sn is T1/2=450 ms and the neutron emission probability is about Pn=25%.
Fig.1
Fig.2
The full collection of the available DN data for nuclei ranging from Co to Eu isotopes is
presented in ref. [1] where a comparison with available theories is also reported. As shown in Fig.2,
data are completely absent in a number of elements such as Co, Ni, Zr, Mo, Ru, Rh, Pd, Ce, Pr, Nd,
Pm, Sm, and Eu. Decay probabilities up to 50-70% are occasionally predicted. Some of these
nuclei have been already experimentally identified and their lifetimes have been measured. The
lightest among this nuclei can be populated not only by fission reaction but also by projectile
fragmentation of beams like 90Zr, as done in some experiments at GANIL and MSU.
B3. Beta-Delayed neutrons in Fission
The probability of DN emission in fission induced by thermal or fast neutron is reported in
Table I (adapted from ref. 15).
Table I: Delayed Neutron Yield per 100 fissions. From [15].
Fissionable Nuclide 2Z-N Fast Fission Thermal Fission
Yield
Yield
238
U
37
4.60
232
Th
37
4.70
237
U
38
3.17
242
Pu
39
2.17
235
U
40
1.50
1.50
241
Pu
40
1.45
238
Np
40
1.47
229
Th
40
1.53
231
Pa
41
1.04
240
Pu
41
0.99
237
Np
41
1.01
234
U
41
1.02
243
Am
41
0.98
233
U
42
0.70
0.70
239
Pu
42
0.68
0.68
227
Th
42
0.72
242
Am
42
0.67
245
Cm
42
0.66
251
Cf
42
0.65
254
Es
42
0.64
241
Am
43
0.46
0.46
238
Pu
43
0.47
232
U
43
0.49
255
Fm
44
0.30
242
Cm
45
0.21
It is seen in Tab.I that the number of delayed neutrons per 100 fission events is strongly function of
the 2Z-N of the fissioning system and is quite large, about 5, in the case of 238U and 232Th, dropping
to 0.7 for 239Pu. In sake of comparison, the DN probability in the spontaneous fission of 252Cf ( 2ZN=42 ) is Y=0.65.The reported data do not show differences for thermal or fast neutron induced
fission documenting that the distribution of the fission products is not changed too much in the two
cases.
Fig.3 The delayed neutron emission in the fission of 235U.
Table II The fission group analysis for 235U used to fit the decay data of Fig.3
As far as the time scale characterizing the process, the average value for DN emission in each
nucleus depends on the population of fission products and their half-lives. As an example,
measurements of decay times for 235U and 239Pu fission induced by thermal neutrons have been
measured in the time interval 5-730 msec by using reactor pulsed beams. The measured time
distributions are well accounted for (see Fig.3) by considering in each case seven group of fission
products, each of them characterized by its probability and average half-life. An example of fission
group analysis is reported in Table II.
It is important to stress the fact that some DN data are also available as a function
of the neutron energy in the range 0-7 MeV. As an example, the total DN yields in term of
neutron/fission in the case of 235U and 237Np are reported in Fig. 4 (from [13]). It is clear that the
DN yield is decreasing significantly in increasing the neutron energy. This is certainly due to a
change of the fission fragment distribution, as documented by the variation of the yield of
individual precursor groups reported in [13]. As a result, the average half-live for DN emission is
also changing significantly.
Fig. 4: The total delayed neutron yield for 235U and 237Np as a function of the neutron energy.
B4. Beta-delayed neutrons for nuclear astrophysics
For nuclei of astrophysical interest the gross decay properties (decay energy Qβ, lifetime,
neutron emission probability per decay Pn) are especially important since lifetimes and Pn-values
control the synthesis of neutron-rich isotopes in the explosive r-process scenario via a network of
equations. Both quantities are strongly depending on the decay energy, which stresses the
underlying nuclear structure in terms of shell effects or deformed nuclear shapes. The r-process path
has been reached for some N=50 and 82 isotones of special importance known as waiting point
nuclei. At these magic numbers capture of a neutron is strongly reduced. The r-process moves along
the magic neutron number by a succession of beta decays and neutron captures, thereby increasing
Z and coming closer to the valley of stability, until the neutron capture becomes more probable than
(γ,n) and creates a nucleus of higher mass. A lot of activity as well experimental as theoretical is
currently devoted to nuclei in these regions. The reproduction of experimental element abundances
have brought the first evidence for lower shell strength at N=50 and 82 very far from the valley of
stability while first experimental nuclear data now become available.
Very far from beta-stability neutron-separation energies become lower (they vanish at the neutron
drip line by definition) while beta-decay Q-values increase. As a consequence the energy window
for beta-delayed neutron emission becomes very wide. Thus, neutron emission becomes the most
probable decay channel. Neutron detection will be the most powerful method for identification of
many new isotopes. Unlike in gamma spectroscopy the less neutron-rich nuclei do not contribute to
the background. There is a more favourable signal-to-noise ratio. It might be that, even in the
medium mass region, the level density in the vicinity of the (now very low) neutron separation
energy could become low enough to allow neutron spectroscopy like in the light nuclei.
B5. Production of neutron rich nuclei by heavy ion collisions
Specific neutron rich nuclei can be populated not only by fission reaction but also by projectile
fragmentation of lighter beams (e.g. 90Zr), as done in some experiments at GANIL and MSU or by
using deep-inelastic reactions. As a test case, we discuss here the possibility of populating light
neutron-rich nuclei in the Z<28 region, which correspond to the so-called super-asymmetric fission
channels. The structure of neutron rich isotopes in the vicinity of the N=32-34 region in Ca and Ti
nuclei has been, indeed, the subject of a wide experimental work in recent years [16,17]. The
interest is mainly in the evidence for a shell gap at N=32 in nuclei in the vicinity of 48Ca. Recently,
the effects of a second shell gap at N=34 has been also proposed in Ca and Ti nuclei. Such
systematic investigation on the structure properties of neutron rich nuclei in this mass region will
certainly need more work, the key issue being here the definition of the best tools to populate the
nuclei of interest.
As an example, to populate neutron rich nuclei in this mass region, two different reaction have
been used:
a) the fragmentation reaction of 140 MeV/nucleon 86Kr on a 9Be target at MSU
b) the deep inelastic reactions (DIC) induced by 305 MeV 48Ca on 208Pb at ANL.
The choice of this second reaction was motivated by the peculiar experimental technique used in
that case, based on the gamma-gamma coincidence on stopped binary products, with the parallel
interest in studying also Pb nuclei [16].
The production of neutron rich nuclei in DIC is known to be extremely sensitive to the N/Z
ratio of the di-nuclear system, being the N/Z ratio equilibrated in short times during the collisions.
This is shown in Table I where the N/Z ratio is compared for some deep inelastic reaction and
fission of the TLF nuclei.
Reaction
DIC 48Ca+208Pb
DIC 64Ni+238U
DIC 64Ni+232Th
Fission 238U
Fission 232Th
N/Z
1.51
1.52
1.51
1.59
1.58
Ca
50
50
50
52
52
Ti
55
55
55
57
57
Ni
70
70
70
73
73
Furthermore, in Table I the Ca, Ti and Ni isotope corresponding to the equilibrate N/Z ratio is also
indicated. It appears that the most probable Ti isotope produced in the 48Ca+208Pb collision is 55Ti,
to be compared with the fact that 52,54Ti nuclei were indeed studied by using such reaction, whereas
56
Ti was not observed. The same N/Z ratio characterizes also other DI reaction induced by Ni
beams, so that those reactions are supposed to produce similar results.
On the contrary, the fission of the 238U or 232Th would produce a significant increase in the
N/Z of the produced Ti and Ni nuclei, if such light nuclei are produced in fission. The isotopic and
isotonic effects in fission fragment yield of actinide nuclei has been recently investigated [18],
demonstrating that the distribution of heavy fragments is rather constant being the one of the light
group mainly determined by the Z of the fissioning system. Such indication has been interpreted as
the demonstration that the proton shells play a major role in the fission process. This means that the
production of “super-asymmetric” fission is mainly governed by the structure properties of the
nascent fragments. The study of the super-asymmetric fission channels is therefore strongly
connected to the nuclear structure effects in fission, such as the role of closed shell fragments in the
scission configuration.
The possibility of producing “light” nuclei far from stability has been demonstrated in the
work of Bernas et al [19], where the fission of 750 AMeV 238U projectiles has been explored. This
work demonstrated the possibility of populating Ni isotopes up to A=78 and Ti isotopes up to
A=61.
A second limiting factor in going far from stability by using DIC is the sequential decay of
the primary fragments, that will depend strongly on the transfer of excitation energy from the
relative motion to the reaction partners as a function of the reaction inelasticity.
It seems therefore that a substantial increase in the N/Z ratio might be obtained by:
1) using the fission of 238U or 232Th;
2) trying to produce the fragments at the lowest possible excitation energy.
From a detection view point, it will be certainly much easy to use collisions induced by
238
232
U or Th beams on a heavy target (208Pb ) or a light one (9Be) and detect the fission fragments
from the fission of the projectile, taking advantage from the kinematical focussing. The two targets,
already used in ref.4 gives the advantage of changing the ratio between nuclear and coulomb
induced effects in the collision.
B6. Experimental methods
The experimental set-ups employed so far in experiments in the field of delayed neutrons
consist essentially in 4π detectors to measure neutrons, mainly in coincidence with beta particles.
The first generation of systems employed mainly moderation detectors. A system using 20 3He
proportional counters is in operation at LANL, see Fig. 5. The efficiency of this system is about
30% [20]. The Mainz Long Counter, uses 64 3He proportional counters arranged in 3 concentric
rings. Its efficiency is about 45% and it is currently used at on-line mass separators, for instance at
ISOLDE-CERN for detection of beta-delayed neutrons of astrophysical interest. Moderation
detectors are only counting neutrons and do not provide any clues on the energy of the detected
neutron. Furthermore, their slow response prevents the use in coincidence experiments.
Fig.5 Cross-section of the LANL 3He detector [16].
A second generation of arrays has been designed to provide also information on the neutron energy,
by using fast scintillators. A 4π system using 16 NE213 scintillators is described in ref. [21]. This
system is presented in Fig.6.
Fig.6 Arrangement of NE213 scintillators for neutron detection from ref. [21].
The most recent systems designed for RIB facilities are discussed in ref. [22] and compared with
the TONNERRE array at GANIL, as reported in Table III. TONNERRE (see Fig.7) uses 32 curved
4 cm thick plastic scintillators BC400 that define a flight path of 1.2 meters. The intrinsic
efficiency for 2 MeV neutrons is about 30% . The total efficiency of the barrel is estimated to be
about 15%. Such a system allows to measure the neutron spectrum by TOF technique.
Fig.7 General view of the TONNERRE array.
Table 1II
B7. Proposed experimental activity
The BIGSOL super-conductive solenoid in connection with the K500 Super-conductive
Cyclotron at the Texas A&M University and other available facilities as NIMROD and MARS offer
new possibility in the field of beta delayed neutron studies.
It is in fact possible to use beams of 238U (or 232Th) at 10-15 MeV/u to produce fission
fragments by bombarding a heavy target (232Th or 208U) in the BIGSOL target chamber. The
produced fission fragments can be focussed by the solenoid on the detector station were reaction
products can be identified by using Si-detector telescopes or the recently installed Bragg detector
system in combination with the measure of the time-of-flight along the spectrometer and the
knowledge of the magnetic field.
The first type of measurements we propose will be simply to collect neutron rich fission
fragments and identify the more neutron rich isotopes that are known to decay by delayed neutron
emission, using as guidance the tabulation of ref. 3. The production of such isotopes has to be
studied as a function of the bombarding energy. In a separate run, the same reactions have to be
studied using the NIMROD detector to determine (mainly by using the NEUTRON BALL) the
average excitation energy associated with each bombarding energy. This information will be used to
correlate the fission data taken at TAMU with those obtained in fission reactions induced by
photons of fast neutrons.
This type of measurements will bring not only information on the populated nuclei, but also
will shed light on the collision mechanisms. Model predictions revealed that the production rate of
some specific nuclei is very different if one is considering a traditional deep-inelastic/sequential
fission mechanism or some statistical multi-fragmentation model.
Once this preliminary investigation of the reactions has been completed, the direct measure
of delayed neutron emission has to be performed for selected nuclear species.
To this end the following points have to be experimentally tested:
1) The possibility of implanting the reaction products selected by BIGSOL in the tape transport
system already existing at TAMU or directly in a catcher-beta detector system placed at the
first focus of the BIGSOL solenoid. The background in the two cases have to be measured.
In the case of use of the tape transport system, the same beta detector will be employed.
2) The possibility of measuring beta-neutron coincidences with the tape transport system or
directly with the in a catcher-beta detector system placed in the BIGSOL first focus to
determine the DN probability (Pn).
3) The alternative use of MARS to study in details the DN emission for specific nuclei
implanted at the MARS target point.
As far as the point 2,3), we propose to build a high efficiency neutron detection system by
using the existing detectors from the RIPEN experiments. Such detectors are BC501 scintillators,
12.5 cm in diameter and 12.5 cm thick. A large number of such detectors (about 40) are available,
so that the construction of the detection system described below is possible without dismounting the
24 detectors already in use in the Bari set-up at the ALPI linac. A good coverage of the solid angle
can be obtained by using 14 detectors arranged in two blocks of 7 detectors, in the geometry
schematically illustrated in Fig.8. This system will be used in a first approximation to detect neutron
hits by simply discriminating neutrons from gamma-rays by pulse shape analysis. It is also planned
to study the possibility of obtaining information about the neutron energy by unfolding the pulseheight spectra. The read-out of the neutron detectors will be performed with existing front-end
electronics (only a small number of NIM modules have been included in the budget) and DAQ
based on Flash ADC cards hosted in a PC, already in operation.
Catcher
Beta detector
Fission
Fragments
Fig.8
The neutron calorimeter will be assembled and tested in a first time with 252Cf source at the
Neutron Laboratory of the Padova University located at LNL and at the LENA Laboratory in
PAvia. Test will be also performed on the delayed neutron detection by using fission of a 232Th
sample bombarded by pulsed 2.6 MeV and 14 MeV neutrons, available from a portable D+D and
D+T neutron generators located in Legnaro and Pavia. This will provide a final test of the complete
set-up in realistic operating conditions.
After the characterization of the neutron calorimeter, it will be transferred to the Texas
A&M Cyclotron Laboratory to be used for a campaign of DN experiments.
The proposed work plan is reported in the attached table. A further point of interest is the future
possibility of replacing the two top and bottom detectors located on the perpendicular of the catcher,
with inorganic scintillators to perform gamma-neutron coincidence and study the level schemes of
the nuclei populated in DN emission.
Proposed time-scale of the project:
Task Task
#
Description
1
Selection of neutron
detector
2
Monte Carlo
simulations
3
Design and production
of mechanics
4
Assembly of the
neutron calorimeter
5
Definition of read-out
6
7
Procurements of
electronics
Test with sources
8
Transport to TAMU
9
BIGSOL/NIMROD
production studies
Definition of the
mounting of the neutron
calorimeter at TAMU
Trigger detector
(beta) design and
construction
Preparation of
mechanics at TAMU
DN studies
10
11
12
13
Q104
Q204
Q304
Q404
Q105
Q205
Q305
Q405
Q106
Q206
Q306
Proposed Milestones
Milestone
#
1
2
3
4
5
7
Date
30-June-04
31-Dec-04
30-March-05
30-Sept-05
31-Dec-05
31-Dec-06
Design of the Neutron Calorimeter frozen
Completion of the first part of the production study at TAMU
Neutron Calorimeter in operation at LNL
End of the commissioning of the Neutron Calorimeter
Neutron Calorimeter installed at TAMU
Completion of DN campaign at TAMU
Q406
References
[1] B. Pfeiffer, K. Kratz and P. Möller, Progress in Nuclear Energy 41 (2002) 39
[2] B. Pfeiffer et al., Nucl. Phys. A693 (2001) 282.
[3] Delion et al Phys. Lett B 398 (1997) 1
[4] J.C. Wang et al, Phys. Lett B 454 (1999) 1
[5] T. Mehren et at, Phys. Rev. Lett. 77 (1996) 458
[6] Shegur et al., Phys. Rev. C 65 (2002) 34313
[7]Lyoussi et al., NIM B160 (2000) 280.
[8] Ozturk et al., Applied Radiation and Isotopes 50 (1999) 407
[9] Gmar et al., NIM A (1999) 841.
[10] Jones et al., INEEL/EXT-2000-01523
[11] Jones et al presentation at CAARI 2002
[12] Hirsch et al., Atomic Data and Nucl. Data Tables 51 (1992) 243.
[13] A. D’Angelo, Progress in Nuclear Energy 41 (2002) 5 and references therein.
[14] J. Segur et al., Nucl. Phys. A682 (2001) 493.
[15] Y. Ronen, Ann. Nucl. Energy 23 1996) 239.
[16] R.V.F. Janssens et al. Phys. Lett. B 546 (2002) 55
[17] J.J. Priscindaro et al. Phys. Lett. B 510 (2001) 17
[18] D.M: Gorodisskiy et al., Phys. Lett. B548 (2002) 45
[19] M. Bernas et al., Phys. Lett. B415 (1997) 111
[20] D. J. Loaiza, NIM A422 (1999) 43
[21] V. Kunze et al., NIM A361 (1995) 263.
[22] A. Buta et al NIM A455 (2000) 412.
Part C: Pre-scission neutron emission in the super-heavy elements mass region.
C.1 Introduction
The synthesis of super-heavy elements (SHE) through heavy-ion reactions has been an interesting field
of nuclear physics research during the last decade and extensive work has been carried out both
theoretically and experimentally to study the production processes [1-7]. Most of the calculations have
predicted SHE to be stable against fission around the double-closed-shell nucleus with Z = 114 and
N = 184 [8-13]. The cross section for the synthesis of SHE is very small (of the order of pb for heavy
elements up to Z = 112) and therefore the experimental understanding of the production mechanism is
of prime importance for the success of future discovery experiments.
Two different methods have been followed to produce SHE: the so-called cold fusion [14,15] in which
the excitation energy of the compound nucleus is very low (E* ≤ 20 MeV) so as to inhibit multichance fission and to consequently increase the yield of evaporation residue products. The magic
nucleus 208Pb or the 209Bi nucleus was used as targets, leading to the final super-heavy nucleus after
one or two neutron emission.
On the other hand, much more asymmetric combinations of colliding nuclei, based on actinide targets
(232Th, 238U, 242,244Pu, 248Cm), were employed to synthesize elements with Z = 110, 112, 114 and 116
[7] using the so-called hot fusion, in which higher incident energies are used to obtain much larger
fusion probabilities in spite of its hindrance, leading to compound nuclei with rather high excitation
energies (E* ~ 40 MeV). Since it is demonstrated that the fission probability of highly excited nuclei is
hindered by dynamical effects, the fission-evaporation competition results in a net increase of the
fusion probability. In this case, the compound nucleus emits many neutrons before the super-heavy
nucleus is produced.
Generally, the synthesis of SHE in fusion reactions depends upon the formation cross section (σfus) as
well as on the survival probability against fission (Wsur) of the compound system [4]. Recently, a few
attempts have been made to develop models for describing fusion process and for reproducing the
cross section data for super-heavy nucleus formation [2-4,16,17].
In this respect, fission dynamics plays an important role in determining the optimum entrance channel
parameters to maximise the production cross section of super-heavy nuclei. Measurements of pre- and
post-scission are known to provide information on the fission delay [18], which in turn increases the
neutron pre-scission emission leading to the formation of a cooled fissioning (super-heavy) composite
system. In the study of fragment-neutron correlation, the pre-scission component is expected to give
information on the effective lifetime of the composite system, while the total number of neutrons can
provide a signature if a mononuclear shape or compound nuclear configuration has been reached
before re-separation of the di-nuclear system.
C.2 Previous experimental results
Our group, in collaboration with the group of the BARC, Mumbai (India) and the Institute of Physics,
Bhubaneswar (India), has started an experimental program within the EDEN experiment (up to the
year 2003) aimed at studying the role of dynamical effects in the population of SHE by neutron
measurements. The reactions studied up to now at the XTU Tandem-ALPI accelerator complex of the
Laboratori Nazionali di Legnaro are:
28
80
Si + 232Th at 340 MeV
Se + 208Pb at 470 MeV
56
232
80
Fe + Th at 316 MeV
Se + 208Pb at 600 MeV
As a first step, an investigation of the 80Se on 208Pb reaction has been performed at the bombarding
energy of 470 MeV, populating a composite system with Z = 116 and A = 288. In this experiment the
reaction products were measured in a time-of-flight (TOF) arm (consisting in a small parallel plate
avalanche counter, PPAC, followed by a large area position sensitive multiwire proportional counter,
MWPC) in coincidence with neutrons detected in 12 BC501 scintillators [19].
These measurements have to be carried out at energies close to the Coulomb barrier, since larger
bombarding energies will result in dominant fast fission processes. At near barrier energies, the
reaction cross section is expected to be dominated by deep-inelastic collision (DIC) or quasi-fission
(QF) and the fusion cross section is expected to be rather weak. This is shown in Fig.1 where a typical
energy loss versus time of flight scatter plot for fragment detected in the TOF arm is reported.
Fig. 1
The observed fragments in the projectile-like fragment (PLF) and in the target-like fragment (TLF)
regions are expected to arise from the admixture of DIC/QF and fusion-fission like processes and they
represent the bulk of the cross section whereas the yield of symmetric fragments, associated with
fusion-fission reactions, appears to be strongly reduced.
The neutron spectra at different angles in coincidence with PLF are reported in Fig. 2.
Fig. 2
The experimental data were least square fitted by assuming three moving neutron sources: the
projectile- and target-like fragments and the pre-scission component, representing the emission from
the intermediate system recoiling with mean energy corresponding to full momentum transfer. The
average multiplicity of the pre-scission source is estimated to be νpre = 1.7+0.3, while the average
multiplicities from PLF and TLF fragments are found to be νL = 1.9+0.4 and νH = 9.1+0.9
respectively, giving a total neutron multiplicity νtotal = 12.7+1.1. The sizeable pre-scission emission
demonstrates that even in the case of highly relaxed deep-inelastic events, the reactions are
characterized by a dinuclear system having a lifetime long enough to allow significant pre-scission
neutron emission from the intermediate stage before the re-separation of the reaction partners. These
results can be compared with the pre-scission neutron multiplicities studied, in the same mass region,
by Hinde et al. [20] and Donadille et al. [21] using the reactions 40Ar + 208Pb and 64Ni + 208Pb at 6-7
MeV/amu. Our results compare generally well with the data from refs.19,20 that are relative to fusionfission reactions leading to symmetric splitting in the exit channel.
The transfer-induced fission channel has been studied in the reaction 28Si on 232Th at 340 MeV
bombarding energy [22] by using the 8πLP detector array [23], to measure light charged particles and
fission fragments, and two NE213 liquid scintillators to detect neutrons in coincidence with fission
fragments. The fission probabilities of TLF nuclei (Pf), that gives a direct measure of the survival
probability of the populated TLF nuclei, have been determined as a function of the projectile charge
(ZPLF), as reported in Fig. 3. The direct measure of fission probability of heavy nuclei that lie, like in
the present case, in the mass region of heavy and super-heavy elements is useful to establish the
optimal conditions for the synthesis of these exotic nuclear species.
Fig. 3
Fig. 3 shows how the ratio of fission yield to PLF singles yield Yf (dots in Fig.3) increases with
increasing net charge transfer up to ∆Z = 4 and then shows a plateau around values of Yf = 0.4-0.6
followed by a decrease for higher transferred ∆Z. For comparison with the observed values of Pf for
∆Z ≤ 6, fission probabilities were calculated by using the statistical model code PACE2 (solid and
dashed lines, details in ref. 22), with level density parameter an = af = A/12 MeV-1. These results show
that the statistical model predictions are severely overestimating the fission probabilities. This means
that TLF nuclei with atomic number Z = 90 - 96 populated in transfer reactions exhibit substantially
reduced fission probability as compared to statistical model estimates, suggesting a sizable survival
probability of TLF nuclei against fission.
Pre-scission neutron and alpha particles multiplicities have been simultaneously measured in the same
reaction. The measured value of pre-scission neutron multiplicity is consistent with earlier systematics
and is accounted for by statistical model calculations using standard level density parameter (an = af =
A/10 MeV-1) and fission delay τfiss = 4 x 10-20s. On the contrary, it is found that the predicted prescission alpha multiplicity is overestimated by a factor two with respect to the experimental data,
which can be reproduced only by lowering the fission delay to τfiss = 1 x 10-20s. In conclusion it seems
impossible to reproduce the two channels with a statistical model calculation in which a single value
of fission delay is used. This fact has been interpreted in the past as a demonstration that neutron and
alpha particles originate in different region of the path of the nucleus from the equilibrium to the
scission configuration [24,25].
C3. Proposed experimental activity
Since the stability of super-heavy nuclei is mainly determined by shell effects, it is important to find in
this study the region in the (Z,N) plane where the shell effects are strongest and can be responsible for
the large lifetime of the super-heavy nuclei. As already mentioned, the synthesis of SHE in fusion
reactions depends upon the formation cross section (σfus) as well as on the survival probability against
fission (Wsur) of the compound system. It has been recently discussed in ref. [26] that the survival
probability of nuclei in the super-heavy region, that reflects the competition between neutron
evaporation and fission Γn/Γf, strongly depends on the level density of such nuclei. The width of a
decay channel is defined as the ratio between the probability of this process RCNi and the level density
ρ(E*CN). In the work of Zbov et al [26], the level density is expressed, taking into account the
collective properties of nuclei, by using the level density parameter a, where the shell correction (δW)
are taken into consideration
a(A, E*-Ec) = ã(A)[1+(f(E*-Ec)δW/(E*-Ec))]
here Ec is the pairing energy and ã(A) is the asymptotic level density parameter. Several
parameterisations of ã(A) have been studied in ref.26 and it has been demonstrated that the value of
Γn/Γf increases to about one order of magnitude varying ã from A/8 to A/12 MeV -1. As an example,
Table 1 shows Γn/Γf values calculated taking into account the energy dependence of the shell effects
(defined by the above equation) and using different asymptotic level density parameter ã.
Table 1
It is therefore important to determine experimentally the level density parameter in the mass region of
super-heavy nuclei. This information can be extracted from the slope of evaporation energy spectra of
pre-scission neutrons, having in mind that in order to determine the level density parameter with an
acceptable uncertainty, the spectra have to be measured with very high statistics. The systems to be
studied will be defined after looking to the results of the data analysis of past experiments.
We propose to continue this scientific program by performing one experiment per year (using on
average 10 days of beam for each run) at the Laboratori Nazionali di Legnaro in the period 2004-6
within the N2P project. In the experiments, the set-up built in past years by the RIPEN collaboration at
the Tandem-ALPI complex will be used. This set-up consists mainly in 24 BC501 scintillators, 12.5
cm in diameter and 12.5 cm thick, placed at 2 m from the target. The fragment detectors are located in
a 1 m diameter vacuum chamber. A picture of this set-up is shown in Fig. 4. Detectors, front-end
electronics and DAQ have been in operation since long time and are still properly functioning.
However, it is necessary to renew the obsolete acquisition system, as detailed in the budget part of this
proposal. The Director of LNL agreed formally on the use of the beam line for the period 2004-6 for
the activity described in this proposal.
In this experimental activity, the Indian groups will take care of the data analysis, while the Italian
groups will be in charge of the hardware preparation, DAQ and data taking.
Fig. 4 The experimental set-up at the Tandem ALPI complex.
References
[1] S. Hofmann, Rep. Prog. Phys. 61, 639 (1998).
[2] V.Yu Denisov and S. Hofmann, Phys. Rev. C 61, 034606 (2000).
[3] R. Smolanczuk, Phys. Rev. C 61, 011601 (2000).
[4] Y. Aritomo, T. Wada, M. Ohta and Y. Abe, Phys. Rev. C 59, 796 (1999).313.
[5] S. Hoffmann and G. Munzenberg, Rev. Mod. Phys. 72, 733 (2000).
[6] A.S. Zuvov et al. Phys. Rev. C 65,024308 (2002).
[7] M.G. Itkis et al, Phys. Rev. C 65, 044602 (2002).
[8] W.D. Myers and W.J. Swiatecki, Nucl. Phys. 81, 1 (1966).
[9] W.D. Myers and W.J. Swiatecki, Ark. Fys. 36, 343 (1967).
[10] P. Moller et al., At. Data Nucl. Data Tables 59, 185 (1995).
[11] Z. Patyk and A. Sobiezewski, Low Energy Nuclear Dynamics, edit by Yu. Ts. Oganessian, W.
von Oertzen, R. Kalpakcheva (World Scientific, Singapore, 1995), p.313.
[12] U. Mosel and W. Greiner, Z. Phys. 222, 261 (1969).
[13] S. G. Nilsson et al., Nucl. Phys. A131, 1 (1969).
[14] Yu. Ts. Oganessian and Y. A. Lazarev, Treatise on Heavy-Ion Science, ed. by D.A. Bromley
(Plenum, New York, 1985), pp. 3-251.
[15] Yu. Ts. Oganessian, Nucl. Phys. A488, 65c (1988).
[16] R. Smolanczuk, Phys. Rev. C59, 2634 (1999).
[17] V. Ninov et al., Phys. Rev. Lett. 83, 1104 (1999).
[18] D.J. Hinde, D. Hilscher and H. Rossner, Nucl. Phys. A502, 497c (1989)
[19] A. Pantaleo et al., Nucl. Instr. and Meth. A291, 570 (1990)
[20] D.J. Hinde et al., Phys. Rev. C45, 1229 (1992).
[21] L. Donadille et al., Nucl. Phys. A656, 259 (1999).
[22] A. Saxena et al., Phys. Rev. C65, 646 (2002).
[23] G. Prete et al., Nucl. Instr. and Meth. A422, 263 (1999).
[24] H. Ikezoe et al., Phys. Rev. C46, 1922 (1992).
[25] J.P. Lestone et al., Phys. Rev. Lett. 67, 1078 (1991).
[26] A.S. Zbov et al., Phys. Rev. C65, 24308 (2002).
Proposal N2P
New experimental activities in the field of
Nuclear Physics with Neutrons
The project budget
Padova May, 2003
Version 1.3
Monday, July 07, 2003
A.1 The Project staff
INFN
INFN unit Name
Padova
D. Fabris
M. Lunardon
M. Morando
S. Moretto
G. Nebbia
S. Pesente
V. Rizzi
G. Viesti
LNL
Bari
Pavia
FTE
INFN Ric
0.3
Sc. Perf.
0.3
Prof. Ord.
0.3
Post Doc
0.4
INFN I Ric
1.0
Dott.
1.0
Ass. Ric.
1.0
Prof. Ass.
0.3
4.6
M. Barbui
Ass. Ric.
1.00
M. Cinausero
INFN Ric
0.50
G. Prete
INFN Dir. Ric 0.40
G. Lhersonneau Art. 23
0.50
A. Andrighetto Art. 23
0.30
2.7
A. Pantaleo
INFN Dir. Ric 0.2
G. D’Erasmo
Prof. Ass.
0.4
E.M. Fiore
Ric. Univ.
0.2
D. DiSanto
Ass. Ric.
0.3
G. Simonetti
Dott.
0.5
B. Dalena
Dott.
0.3
1.9
V. Filippini
INFN I Ric
0.5
A. Zenoni
Prof. Straord. 0.5
1.0
21 Researchers
10.2
Collaborating Institutions
Institute
Institute of Physics Bhubaneswar
BARC-Mumbai
BARC-Mumbai
Cyclotron Institute TAMU
Name
R.K. Choudhury
S.S. Kapoor
A. Saxena
J.B. Natowitz
R. Wada
K. Hagel
G. Souliotis
Padova
LNL
Bari
Pavia
Total
Proposed time-scale of the Proton Recoil Telescope:
Task Task
#
Description
1
Definition of neutron
detector
2
Monte Carlo
simulations
3
Design and
production of
mechanics
4
Assembly of the
telescope
components
5
Definition of readout
6
Procurements of
electronics
7
Test with sources
and calibration with
14 MeV neutrons
8
Transport to the lab
for the p+13C
measurements
9
p+13C measurements
10
Data analysis
11
Definition of other
fields of application
Q104
Q204
Q304
Q404
Q105
Q205
Q305
Q405
Q106
Q206
Q306
Proposed Milestones
Milestone
#
1
2
3
4
5
6
7
Date
30-June-04
31-Dec-04
30-March-05
30-Sept-05
31-Dec-05
30-June-06
31-Dec-06
Project of the Proton Recoil Telescope
Selection of the Laboratory for the experimental campaign
Proton Recoil Telescope in operation at LNL or Pavia
End of the commissioning of the Proton Recoil Telescope
Proton Recoil Telescope installed in the Laboratory
Completion of the p+13C measurements
Completion of the p+13C data analysis
Q406
Proposed time-scale of TAMU activities:
Task Task
#
Description
1
Selection of neutron
detector
2
Monte Carlo
simulations
3
Design and production
of mechanics
4
Assembly of the
neutron calorimeter
5
Definition of read-out
6
7
Procurements of
electronics
Test with sources
8
Transport to TAMU
9
BIGSOL/NIMROD
production studies
Definition of the
mounting of the neutron
calorimeter at TAMU
Trigger detector
(beta) design and
construction
Preparation of
mechanics at TAMU
DN studies
10
11
12
13
Q104
Q204
Q304
Q404
Q105
Q205
Q305
Q405
Q106
Q206
Q306
Proposed Milestones
Milestone
#
1
2
3
4
5
7
Date
30-June-04
31-Dec-04
30-March-05
30-Sept-05
31-Dec-05
31-Dec-06
Project of the Neutron Calorimeter
Completion of the first part of the production study at TAMU
Neutron Calorimeter in operation at LNL
End of the commissioning of the Neutron Calorimeter
Neutron Calorimeter installed at TAMU
Completion of DN campaign at TAMU
NB for the LNL Tandem – Alpi experiments: 1 experiment/year
Q406
A.2 Travel costs
A.2.1 Travels within Italy
1) Collaboration & working groups meetings: 2 meetings/year
1 KE * R
2) ALPI LINAC runs: 1 beam time (2 weeks) year (100E/Day)
Bari 6R*20days*100E=12 KE; Pavia 2*10days*100= 2 KE; Pd Budget for
travel to LNL: 300 E/month * 7R= 2.1 E
3) Laboratory tests in Pavia and Legnaro (2004-5)
Pavia to LNL: 2R*15gg*100= 3 K
LNL to Pavia: 3R*15gg*100= 4.5 K
Pd to Pavia: 3R*15gg*100= 4.5 K
Ba to Pavia and LNL: 3R*15gg*100= 4.5 K
4) Meetings for Data Analysis (2006): 1 meetings/year 0.5 KE * R
2004 Costs (kEuro)
Type
Bari
R=6
Meetings
6
ALPI LINAC runs 12
Laboratory tests
4.5
Total
22.5
LNL
R=5
5
4.5
9.5
Pavia
R=2
2
2
3
7
Padova
R=7
7
2.1
4.5
13.6
Total
R=19
20
16.1
16.5
52.6
LNL
R=5
5
4.5
9.5
Pavia
R=2
2
2
3
7
Padova
R=7
7
2.1
4.5
13.6
Total
R=19
19
16.1
16.5
52.6
LNL
R=5
5
2.5
7.5
Pavia
R=2
2
2
1
5
Padova
R=7
7
2.1
3.5
12.6
Total
R=19
19
16.1
9.5
43.6
2005 Costs (kEuro)
Type
Bari
R=6
Meetings
6
ALPI LINAC runs 12
Laboratory tests
4.5
Total
22.5
2006 Costs (kEuro)
Type
Bari
R=6
Meetings
6
ALPI LINAC runs 12
Data Analysis
2.5
Total
18.5
A.2.2 Travels outside Italy
A.2.2.1 Collaboration with Indian Institutes
Meetings in India for discussion of experimental results
Padova: 1 R one week in India including travel 1 x 2.5 KE= 2.5 KE
A.2.2.2 Collaboration with TAMU
2 data taking/year for a total of 6 week, 4 R per week=
6*4=24 week/year
1 week= 2.5 kE including travel
24 * 2.5 =60 KE
A.2.2.3 Neutron experiments
2004-5
Contacts Laboratories for preparation of the experiments
LNL, Pv, Ba: 2.5 KE
2006
2 data taking each 2 weeks long, 4 R per week=
2*2*4=16 week/year
1 week= 2.5 kE including travel
16 * 2.5 =40 KE
Costs 2004 (kEuro)
Type
Bari
R=6
Collaboration with India TAMU
7.5
Neutron Experiments
2.5
TOTAL
10
LNL
R=5
17.5
2.5
20
Pavia
R=2
2.5
2.5
Padova
R=7
2.5
35
37.5
Total
R=19
2.5
60
7.5
70
LNL
R=5
17.5
2.5
20
Pavia
R=2
2.5
2.5
Padova
R=7
2.5
35
37.5
Total
R=19
2.5
60
7.5
70
Costs 2005 (kEuro)
Type
Bari
R=6
7.5
Neutron Experiments
2.5
TOTAL
10
Costs 2006 (kEuro)
Type
Bari
R=6
7.5
Neutron Experiments
5
TOTAL
12.5
LNL
R=5
17.5
7.5
25
Pavia
R=2
5
5
Padova
R=7
2.5
35
2.5
40
Total
R=19
2.5
60
20
82.5
A.3 Shipment of Equipment
Type
Bari LNL Pavia
R=6 R=5 R=2
Shipment to TAMU 2004 2.5
Shipment of the Neutron
5
Calorimeter 2005
Shipment of the Proton
2.5
Recoil Telescopes 2005
TOTAL
10
Padova Total
R=7
R=19
2.5
5
-
2.5
10
A.4 Equipment & Consumables
The project foresees the design of 2 new detectors, the proton recoil telescope
and the neutron calorimeter, for which existing components (front endelectronics, DAQ systems and neutron scintillators) will be used. The new
detectors will be completely equipped to be transferred to different labs for
experiments. Moreover, it is needed to replace completely the obsolete DAQ of
the neutron array of the Bari group at the Tandem-Linac accelerator at LNL
A.4.1 Proton Recoil Telescopes
Item
Description
MWPC
Construction
MWPC gas
system
MWPC
electronics (*)
X-Y detectors
10 x 10 cm2 area
Needle valves, pressure meters
& controls
Ampl
Fast preamps
CFTD
HV
NIM and CAMAC crates
TDC ADC CAMAC
K-MAX (CamacContr+Mem)
PC portable+accessories
Thin scintillator, light guide
And PMT
Thick scintillator with PD read
out, light guide & electronics
Support structure, MWPC
pressure vessel, shadow bar
material
DAQ(**)
Active Converter
Energy detector
Mechanics &
Shadow-bar
Consumables&
Material for lab
tests
Material for
Experiments
Total
Cost
Breakdown
5 KE
Year Units
5 KE
2004 LNL
2 KE
5 KE
----10 KE
5 KE
5 KE
2005 LNL
10 KE
2004 LNL
10 KE
2004 LNL
5 KE
5 KE
2004 LNL
2005 LNL
5 KE
2006 LNL
2004 LNL
2005 LNL
2004 LNL
72 KE
(*) Major components of front-end electronics are already available.
(**) It is supposed the use of existing K-MAX system. Additional Camac
Controller and Memory Card are needed. The use of a Portable PC with
accessories is proposed.
A.4.2 Neutron Calorimeter
Item
Description
Mechanics
Calorimeter support
structure
Central chamber, catcher,
vacuum valves
14 Neutron Detectors
Mechanics
Neutron detectors
(*)
Read-out
electronics (*)
DAQ (**)
Beta detector
Consumables&
Material for lab
tests
Material for
Experiments
Total
CFTD
HV
Fast Logic Moduls
Pulse Shape Discriminators
Portable FADC based DAQ
system
FADC system upgrade &
spares
Scintillator with PM read out,
light guide & electronics
Cost
Breakdown
5 KE
Year Units
2004 Pd
10 KE
2004 Pd
---16 K
--
2004 Pd
-5K
8 KE
2005 Pd
2004 Pv
10 KE
5 KE
10 KE
5 KE
10 KE
5 KE
89 KE
2004
2004
2005
2005
2006
2006
Pd
Pv
Pd
Pv
Pd
Pv
(*) Neutron detectors and major Front-End electronics are available.
(**) It is supposed to use existing DAQ based on portable PC+ FADC, already
used successfully in experiments at TAMU. A detailed electronics scheme will
follow
A.4.3 DAQ and Front end electronics for the LNL measuring station
Item
Description
DAQ (*)
Front End
electronics
Material for
Experiments
Total
Cost
Breakdown
48 KE
23 KE
5 KE
5 KE
5 KE
86 KE
Year Units
2004
2005
2004
2005
2006
Ba
Ba
Ba
Ba
Ba
(*) Sostituzione dell’ elettronica di Front-end per il punto misura BARI al
Tandem-Linac di Legnaro
Motivazioni per la sostituzione dell’hardware di acquisizione dati e dell’elettronica, al di là
della ben nota necessità di sostituire il computer utilizzato, ancora di tipo MicroVax.
Tutto parte dalla progressiva e veloce obsolescenza dei moduli GANELEC che realizzano il
doppio integrale di carica, finalizzato alla PSD dei rivelatori di neutroni, non più commercializzati.
Con il ritmo di autofagocitamento dei pezzi di ricambio fin qui sperimentato in fase di
riparazione, non possiamo dare per esistenti su tutto il triennio della proposta N2P dei moduli in
questione e, pertanto, viene presentata sin da subito una proposta per la loro sostituzione.
Detta sostituzione ha, al momento, una sola ipotesi di svolgimento: usare dei moduli VME
commercializzati dalla CAEN (unica produzione esistente di integratori di carica a gates
indipendenti con relativi generatori di gates), il che impone che nel prossimo sistema di
acquisizione dati il sistema VME venga immediatamente associato al sistema CAMAC..
Il nostro modo di affrontare la cosa è stato pensare ad un nuovo sistema di acquisizione dati
(programma MIDAS di Vancouver) basato su un PC con scheda PCI che colloquia tramite una fibra
ottica con una interfaccia VME che governa un crate VME 6U, dove trovano collocazione i moduli
CAEN per la doppia integrazione di carica ed un Branch Driver da VME a Camac, a cui aggiungere
tutto il resto del Camac finora utilizzato.
In conclusione la richiesta dell’hardware di N2P dovrebbe contenere quanto segue:
1) Computer (s) e Data Recording:
10 k€
2) Interfacciamento PCI-VME: SBS 617 (opt. 620)
4 k€
3) Crate VME 6U :
8 k€
4) VME to Camac Branch Driver (CBD 8210 della CES)
4 k€
5) 8 * Caen V486 (Gate and Delay Generators a canali
indipendenti) :
33 k€
6) 2 * Caen V862 (Integratori di Carica a gates ind.)
12 k€
per un totale di 71 k€ di cui possono essere rimandati al secondo anno il 50% delle voci 5) e
6) pari complessivamente a circa 23 k€.
A.4.4 MC and Off-line analysis PC
Item
Description
5 PC +
accessories
Computers with HD storage
capacity
Total
Cost
Breakdown
3 KE
3 KE
3 KE
3 KE
3 KE
15 KE
BUDGET SUMMARY
Item
Travel within Italy
Travel outside Italy
Shipments
2004
52.6
70
2.5
2005
52.6
70
5
2006
43.6
82.5
2.5
total
148.8
222.5
10
27
20
28
147
75
9
6
281.1 209.6
5
15
5
25
--153.6
72
89
86
247
15
643.3
Equipment & Consumables
40
Proton Recoil Telescopes
54
TAMU
53
Experiments at LNL
Computing
TOTAL
Year Units
2004
2004
2005
2005
2004
LNL
PV
PD
PV
BA
PIANO FINANZIARIO PLURIENNALE (k€)
Trasferte in Italia
Trasferte estero
Spedizioni
Materiale Inventariabile
Proton Recoil Telescopes
Esperimenti TAMU
Esperimenti a LNL
Computers analisi dati
2004
52.6
70
2.5
2005
52.6
70
5
2006
43.6
82.5
2.5
totale
148.8
222.5
10
5
16
48
9
78
25
22
5
23
6
56
25
25
27
21
71
15
134
75
208.6
153.6
30
23
53
643.3
Materiale Consumo
Costruzione Apparati
Proton Recoil Telescopes 30
Esperimenti TAMU
23
53
TOTALE
281.1
Codice
Esperimento Gruppo
N2P
3
Rapp. naz.: Giuseppe Viesti
PREVISIONE DI SPESA
In KEuro
ANNI
Miss.
Miss.
FINANZIARI interno estero. di cons. Facch. Calc.
2004
2005
2006
TOTALI
Mod EC./EN. 6
52.5
53.0
44.0
70
70.0
82.5
149,5 222,5
25
25.0
25.0
2.5
5.0
2.5
75,0
10,0
0
0.0
0.0
Affitti e
Manut.
Appar.
0
0.0
0.0
Mater.
inventar
Costr.
appar.
TOTALE
Compet.
78
56.0
0.0
53
0.0
0.0
281.0
209.0
154.0
134,0
53,0
644,0
Struttura
BA
Codice
Esperimento
N2P
Gruppo
3
N
1
2
3
4
5
6
RICERCATORE
Cognome e Nome
Qualifica
Dipendenti
Incarichi
Affer.
al
. gruppo
%
3
3
3
3
3
3
40
30
30
20
20
50
N
Ruolo Art. 23 RicercaAssoc
D'Erasmo Ginevra
Dalena Barbaba
Disanto Daniela
Pantaleo Ambrogio
D.R.
Simonetti Giuseppe
P.A.
Dott.
AsRic
R.U.
Dott.
TECNOLOGI
Cognome e Nome
Qualifica
Incarichi
Ass.
Ruolo Art. 23
Tecnol.
Dipendenti
%
N
1
2
3
4
1
Cognome e Nome
Antuofermo Gaetano
Iacobelli Giuseppe
Sacchetti Michele
Vasta Pietro
Qualifica
Incarichi
Dipendenti
Ruolo
Art. Collab.
15 tecnica
%
Assoc.
tecnica
CTer.
CTer.
O.T.
O.T.
10
10
10
10
4
0.4
Annotazioni:
SERVIZI TECNICI
Denominazione
Officina Meccanica
TECNICI
0
0
mesi−uomo
1.0
La partecipazione appare eccessivamente frazionaria, in particolare trattandosi di nuovo
esperimento.
Mod EC./EN. 7
NUCLEARE
Codice
Esperimento
Gruppo
N2P
3
Rapp. Naz.: Giuseppe Viesti
Data
completamento
Descrizione
30−6−2004
Progetto del Proton Recoil Telescope.
30−6−2004
Progetto del calorimetro di Neutroni per TAMU.
31−12−2004
Selezione del Laboratorio per campagna di sperimentazione del Proton Recoil Telescope
31−12−2004
Completamento della prima parte degli studi di produzioone al TAMU.
Mod EC./EN. 8
NUCLEARE
Codice
Esperimento
NA−57
Rapp. Naz.: Bruno Ghidini
Gruppo
3
Bruno Ghidini
BA
Ricerca di plasma di quark e gluoni
Linea di ricerca
Laboratorio ove
CERN
Sigla dello
esperimento
assegnata dal
laboratorio
NA−57
SPS
Acceleratore usato
Fascio
(sigla e
caratteristiche)
H4: protoni e nuclei di Pb da 40 e 160 GeV/c per nucleone
Produzione di barioni e antibarioni multistrani nelle interazioni
Pb−Pb ad energie ultrarelativistiche
Processo fisico
studiato
Apparato
strumentale
utilizzato
Telescopio di rivelatori al silicio in campo magnetico (Magnete
GOLIATH)
BA, CT, PD, RM1, SA (NA) fino al 2003;
BA, CT, PD nel 2004
all'esperimento
Bergen, Birmingham, Bratislava, Cern, Kosice, Olso, Praga, St.
Peterburg, Strasburgo, Utrecht
Istituzioni esterne
1997 − 2004
Durata esperimento
Mod EC. 1
Struttura
BA
Codice
Esperimento
NA−57
Resp. loc.: Bruno Ghidini
Gruppo
3
In KEuro
IMPORTI
VOCI
DI
SPESA
Parziali
SJ
Riunioni di gruppi Italiani e scambi di ricercatori
Totale Compet.
SJ
3.0
3.0 0.0
Riunioni di collaborazioni stage di analisi
13.0
13.0 0.0
Contributi alle spese comuni per smantellamento e stocaggio apparato. Metabolismo di
gruppo per l'analisi
6.0
6.0 0.0
0.0 0.0
Consorzio
Ore CPU
Spazio Disco
Cassette
Altro
0.0 0.0
0.0 0.0
0.0 0.0
0.0 0.0
Totale
22.0 0.0
Mod EC./EN. 2
A cura della
Comm.ne
Scientifica
Nazionale
Struttura
BA
Codice
Esperimento
NA−57
Gruppo
3
Struttura
BA
Codice
Esperimento
NA−57
Gruppo
3
Codice
Esperimento
NA−57
NUCLEARE
Gruppo
3
In KEuro
di cui SJ
BA
CT
PD
TOTALI
di cui SJ
Materiale
di cons.
di cui SJ
Trasp.
e Facch.
di cui SJ
Spese Calc.
di cui SJ
Affitti e
Manut.
Appar.
di cui SJ
Mater.
inventar.
di cui SJ
Costr.
appar.
di cui SJ
TOTALE
Compet.
A
carico
di altri
Enti
di cui SJ
3,0
2,0
2,5
13,0
6,0
10,0
6,0
3,0
4,0
22,0
11,0
16,5
7,5
29,0
13,0
49,5
0,0
0,0
0,0
Note:
Mod EC./EN. 4
Codice
Esperimento
NA−57
NUCLEARE
Gruppo
3
Come previsto, è stata completata la ricostruzione degli eventi p−Be a 40 GeV/c:
l'analisi fisica è in corso.
E' stata completata l'analisi fisica delle V° e delle "cascate" nei dati Pb−Pb del
1998,1999 e 2000 ed è in corso la stesura delle prime pubblicazioni scientifiche.
E' inoltre in corso la rianalisi dei dati p−Be a 160 GeV/c dell'esperimento WA97, che
serviranno come punto di riferimento per la valutazione dell'incremento di
stranezza a 160 GeV/c.
Completamento dell'analisi dei dati p−Be a 40 GeV/c e misura dell'incremento di
stranezza a 40 GeV/c, con relative pubblicazioni.
Anno
Missioni Missioni
2003
TOTALE
Mod EC. 5
In kEuro
Affitti e
Materiale
Materiale Costruz.
Trasp. e Spese
TOTALE
Manut.
di
inventar. apparati
Facch. Calcolo
Apparec.
consumo
11.5
43.5
29.0
0.0
0.0
0.0
8.0
0.0
92.0
11.5
43.5
29
0
0
0
8
0
92
Codice
Esperimento
NA−57
NUCLEARE
Gruppo
3
PREVISIONE DI SPESA
In KEuro
ANNI
Miss.
FINANZIARI interno
2004
2005
TOTALI
Mod EC./EN. 6
estero.
cons.
Facch.
Calc.
7.5
0.0
29
0.0
13
0.0
7,5
29,0
13,0
0
0.0
0
0.0
Affitti e
Manut.
Appar.
0
0.0
Mater. Costr.
inventar appar.
0
0.0
0
0.0
TOTALE
Compet.
49.5
0.0
49,5
Struttura
BA
Codice
Esperimento
NA−57
Gruppo
3
N
1
2
3
4
5
Qualifica
Affer.
Incarichi
al
%
Cognome e Nome
gruppo
.
Art.
23
Ruolo
Ricerca Assoc
AsRic
Bruno Giuseppe
Elia Domenico
Fini Rosa Anna
Ghidini Bruno
Manzari Vito
Ric.
Ric.
P.O.
Ric.
3
3
3
3
3
N
TECNOLOGI
Cognome e Nome
Qualifica
Incarichi
Ass.
Ruolo Art. 23
Tecnol.
Dipendenti
70
20
20
30
20
N
TECNICI
Cognome e Nome
1 Loconsole Alfredo
Qualifica
Incarichi
Dipendenti
Ruolo
Art.
15
Univ.
Annotazioni:
mesi−uomo
Mod EC./EN. 7
0
0
%
Collab.
Assoc. tecnica
tecnica
SERVIZI TECNICI
Denominazione
%
20
1
0.2
Codice
Esperimento
NA−57
NUCLEARE
Gruppo
3
Data
completamento
Descrizione
30−6−2004
Completamento analisi dati p−Be a 40 GeV/c.
31 − 12 −2004
Completamento dell'esperimento
Mod EC./EN. 8
Struttura
Gruppo
BA
3
Coordinatore: Eugenio Nappi
COMPOSIZIONE DEI GRUPPI DI RICERCA: A) − RICERCATORI
Componenti del Gruppo e ricerche alle quali partecipano:
Ricerche del gruppo in %
Qualifica
N.
Cognome e Nome
Dipendenti
Incarichi
Affer.
al
gruppo
Ruolo Art. 23 Ricerca Assoc.
I
1
Bisceglie Emanuele
B.UE
3
2
Bruno Giuseppe
AsRic
3
3
Carrone Enzo
Dott.
3
4
Caselle Michele
AsRic
3
5
Colonna Nicola
6
Corsi Francesco
P.O.
3
70
7
D'Alessandro Antonio
Bors.
3
100
8
D'Erasmo Ginevra
3
30
9
Dalena Barbaba
10
De Cataldo Giacinto
11
De Leo Raffaele
P.O.
3
12
Di Bari Domenico
R.U.
3
13
Disanto Daniela
AsRic
3
14
Dragone Angelo
Dott.
3
15
Elia Domenico
Ric.
3
20
50
30
16
Fini Rosa Anna
Ric.
3
20
50
30
17
R.U.
3
18
Ghidini Bruno
P.O.
3
19
Lagamba Luigi
20
Lenti Vito
I Ric
21
Manzari Vito
Ric.
22
Marrone Stefano
23
Nappi Eugenio
24
Navach Franco
25
Pantaleo Ambrogio
26
Pastore Cosimo
27
Paticchio Vincenzo
28
Posa Francesco
P.O.
3
29
Santoro Romualdo
Dott.
3
30
Sgura Irene
Bors.
3
Ric.
3
P.A.
Dott.
Ric.
70
100
100
D.R.
Dott.
I Ric
30
40
70
30
20
10
70
50
30
30
35
30
70
30
20
35
20
70
30
50
30
70
30
70
3
50
3
30
3
Ricercatori
50
100
3
3
40
100
3
P.A.
30
80
3
D.R.
30
50
50
20
100
70
30
50
100
100
4.8 1.6 9.55 9.85 5.1 1.9 1.2 1.5
Note:
INSERIRE I NOMINATIVI IN ORDINE ALFABETICO
1) PER I DIPENDENTI
2) PER GLI INCARICHI DI RICERCA
3) PER GLI INCARICHI DI ASSOCIAZIONE
(N.B.NON VANNO INSERITI I LAUREANDI)
Mod G1
Indicare il profilo INFN
Indicare la Qualifica Universitaria (P.O. P.A. R.U.) o Ente di rappresentanza
Indicare la Qualifica Universitaria o Ente di appartenenza per Dipendenti altri Enti:
Bors.) Borsista; B−P−D) Post−Doc; B.Str.) Borsista straniero; Perf.) Perfezionando;
Dott.) Dottorando; AsRic) Assegno di ricerca; S.Str) Studioso straniero;
DIS) Docente Istituto Superiore
4) INDICARE IL GRUPPO DI AFFERENZA
V
30
3
3
IV
100
3
AsRic
II
100
3
Dott.
Percentuale
impegno
in altri gruppi
50
Struttura
Gruppo
BA
3
COMPOSIZIONE DEI GRUPPI DI RICERCA: A) − RICERCATORI
N.
Cognome e Nome
Dipendenti
Incarichi
Affer.
al
gruppo
Ruolo Art. 23 Ricerca Assoc.
I
31
Shileev Kirill
B.Str.
3
32
Simonetti Giuseppe
Dott.
3
33
Singh Barthendu
B.Str.
3
34
Tagliente Giuseppe Ric.
35
Tauro Arturo
Dott.
3
36
Terlizzi Rita
Dott.
3
37
Valentini Antonio
50
50
100
100
30
4.8 1.6 9.55 9.85 5.1 1.9 1.2 1.5
Note:
Mod G1
Indicare la Qualifica Universitaria (P.O. P.A. R.U.) o Ente di rappresentanza
Indicare la Qualifica Universitaria o Ente di appartenenza per Dipendenti altri Enti:
Bors.) Borsista; B−P−D) Post−Doc; B.Str.) Borsista straniero; Perf.) Perfezionando;
Dott.) Dottorando; AsRic) Assegno di ricerca; S.Str) Studioso straniero;
DIS) Docente Istituto Superiore
4) INDICARE IL GRUPPO DI AFFERENZA
V
100
5
INSERIRE I NOMINATIVI IN ORDINE ALFABETICO
IV
100
3
P.A.
II
100
Ricercatori
1) PER I DIPENDENTI
2) PER GLI INCARICHI DI RICERCA
Percentuale
impegno
in altri gruppi
Qualifica
50
20
Struttura
Gruppo
BA
3
COMPOSIZIONE DEI GRUPPI DI RICERCA: B) − TECNOLOGI
Qualifica
N.
Dipendenti
Incarichi
Ruolo Art. 23
Assoc.
Tecnologica
Cognome e Nome
Percentuale
impegno
in altri gruppi
I
II
IV
V
1
Castellano Marcello
R.U.
2
De Venuto Daniela
R.U.
3
Fratino Umberto
P.A.
4
Galantucci Luigi Maria
P.O.
30
70
5
Marzocca Cristoforo
R.U.
70
30
6
Matarrese Gianvito
Bors.
70
30
7
Percoco Gianluca
Dott.
30
70
8
Piscitelli Giacomo
P.A.
9
Spina Roberto
R.U.
30
70
70
70
30
30
Note:
1) PER I DIPENDENTI
Mod G2
30
50
50
Indicare Ente da cui dipendono, Bors. T.) Borsista Tecnologo
70
Struttura
Gruppo
BA
3
COMPOSIZIONE DEI GRUPPI DI RICERCA: C) − TECNICI
Qualifica
N.
1
Dipendenti
Incarichi
Ruolo Art. 23
Collab. Assoc.
tecnica Tecnica
Percentuale impegno
in altri gruppi
Cognome e Nome
Antuofermo Gaetano
50
CTer.
2
Casamassima Giuseppe
3
Franco Antonio
CTer.
4
Iacobelli Giuseppe
CTer.
5
Liberti Lorenzo
Tecn.
6
Loconsole Alfredo
7
Rizzi Vincenzo
8
Sacchetti Michele
O.T.
9
Vasta Pietro
O.T.
I
Univ.
40
II
IV
V
10
20
50 30
100
40
50
10
25
50
Univ.
CTer.
15
10
20
60
20
100
30
30
10
30
50
20
10
20
Servizi (mesi−uomo)
1
Camera Pulita
2.0
2
Elettronica
2.0
1.0
1.0
1.0
7.0
3
Officina Meccanica
5.0 1.0
10.0 1.0
1.0
25.0 15.0
3.0
4
Progettazione meccanica
2.0
10.0 8.0
2.0
5
Officina Meccanica
22.0
1.0
1.0
Note:
1) PER I DIPENDENTI
2) PER GLI INCARICHI DI COLLABORAZIONE TECNICA
3) PER GLI INCARICHI DI ASSOCIAZIONE TECNICA
Mod G3
Indicare Ente da cui dipendono
Indicare Ente da cui dipendono
6.0
1.0
Struttura
Gruppo
BA
3
PREVISIONE DELLE SPESE DI DOTAZIONE E GENERALI DI GRUPPO
Dettaglio della previsione delle spese del Gruppo che non afferiscono
ai singoli esperimenti e per l'ampliamento della Dotazione di base del Gruppo
In KEuro
IMPORTI
VOCI
DI
SPESA
Parziali
Totale
Compet.
Viaggi del coordinatore per riunioni CSN, Viaggi del coordinatore per riunioni CSN,
16.0
partecipazioni alle riunioni di altri componenti del Gruppo, scuole e congressi in Italia
16.0
Interno
Estero
Materiale
di consumo
Partecipazioni a congressi e scuole 30,0
30.0
Contatti per nuove iniziative
5.0
Cancelleria, licenze software
10.0
metabolismo laboratorio e ricambi elettrici e meccanici
10.0
35.0
20.0
8.0
0.0
Spese Seminari
Trasporti e facch.
Pubblicazioni
Scientifiche
Spese Calcolo
8.0
Consorzio
Ore CPU
Spazio Disco
Cassette
Altro
0.0
Affitti e
Manutenzione
Apparecchiature
(1)
Materiale
inventariabile
0.0
Materiale 40,0 Modulistica NIM, VME per pool di Gruppo
40.0
Desktops
10.0
Strumentazione di laboratorio
20.0
Totali
(1) Indicare tutte le macchine in manutenzione
Mod G4
70.0
157.0
Struttura
BA
Gruppo
3
PREVISIONE DELLE SPESE PER LE RICERCHE
RIEPILOGO DELLE SPESE PREVISTE PER LE RICERCHE DEL GRUPPO
In KEuro
SIGLA
ESPERIMENTO
ALICE_GRID
ALICE_HMPID
ALICE_PIX
ELETTRO
FINUDA
HERMES
N−TOF
NA−57
SPESA PROPOSTA
Miss.
interno
Miss.
estero
Mater. di
cons.
Spese
Semin.
Trasp e
Facch.
6.0
18.0
40.0
4.0
150.0
4.0
10.0
3.0
0.0
169.0
196.0
28.0
15.0
40.0
79.0
13.0
0.0
44.0
50.0
13.0
30.0
5.0
26.0
6.0
Totali A)
235
540
174
N2P
22.5
10.0
5.0
Totali B)
22.5
10
5
0
0
C) Dotazioni di
Gruppo
16.0
35.0
20.0
8.0
Totali (A+B+C)
273.5
585
199
8
Mod G5
Pubbl.
Scient.
0.0
10.0
15.0
0.0
0.0
0.0
0.0
0.0
0
Aff. e
Manut.
App.
Spese
Calc.
Mater.
Invent.
Costruz.
Appar.
TOT
Compet.
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
15.5
34.0
40.0
0.0
10.0
10.0
4.0
0.0
0.0
103.0
59.0
0.0
0.0
0.0
30.0
0.0
21.5
378.0
400.0
45.0
205.0
59.0
149.0
22.0
0
0
113.5
192
1279.5
0.0
0.0
51.0
0.0
88.5
0
0
0
51
0
88.5
0.0
8.0
0.0
0.0
70.0
0.0
157.0
25
8
0
0
234.5
192
1525
25
0
0.0

ISTITUTO NAZIONALE DI FISICA NUCLEARE Preventivo per

Transcript

Documenti analoghi

View the slides

Obiettivo mondo The Arab spring and the Maroccan (r)evolution by

NEUTRON DIFFRACTION IN ARCHAEOMETRY: THE ITALIAN

1942 Enrico Fermi innesca la prima reazione nucleare a

ODECA srl Mod. C4TD Etichettatrice termica - carlotti

deceased Isospin Effects In Projectile Dynamical Fission For Sn+ Ni

Appunti di viaggio

inglese

tritacarne - Swedlinghaus

Storia della metallurgia Caratterizzazione qualitativa di antiche

Clicca qui per visualizzare i risultati dell