SUBENT 23194001 20130511 22352319400100001
BIB 16 135 2319400100002
TITLE The Zr-93(n,gamma) reaction up to 8 keV neutron energy2319400100003
REFERENCE (J,PR/C,87,014622,2013) 2319400100004
#doi:10.1103/PhysRevC.87.014622 2319400100005
Main reference. 2319400100006
AUTHOR (G.Tagliente,P.M.Milazzo, K.Fujii,U.Abbondanno,G.Aerts,2319400100007
H.Alvarez, F.Alvarez-Velarde, S.Andriamonje, 2319400100008
J.Andrzejewski,L.Audouin,G.Badurek, P.Baumann,F.Becvar,2319400100009
F.Belloni, E.Berthoumieux, F.Calvino, M.Calviani, 2319400100010
D.Cano-Ott,R.Capote, C.Carrappico, P.Cennini, V.Chepel,2319400100011
E.Chiaveri, N.Colonna, G.Cortes, A.Couture, M.Dahlfors,2319400100012
S.David, I.Dillmann, C.Domingo-Pardo, W.Dridi, I.Duran,2319400100013
C.Eleftheriadis, M.Embid-Segura, A.Ferrari, 2319400100014
R.Ferreira-Marques, W.Furman, I.Goncalves, 2319400100015
E.Gonzalez-Romero, F.Gramegna, C.Guerrero, F.Gunsing, 2319400100016
B.Haas, R.Haight, M.Heil,A.Herrera-Martinez, E.Jericha,2319400100017
F.Kaeppeler, Y.Kadi,D.Karadimos,D.Karamanis, M.Kerveno,2319400100018
E.Kossionides, M.Krticka,C.Lamboudis, H.Leeb,A.Lindote,2319400100019
I.Lopes, S.Lukic, J.Marganiec, S.Marrone, T.Martinez, 2319400100020
C.Massimi, P.Mastinu, A.Mengoni, C.Moreau, M.Mosconi, 2319400100021
F.Neves, H.Oberhummer, S.O'Brien, C.Papachristodoulou, 2319400100022
C.Papadopoulos, C.Paradela, N.Patronis, A.Pavlik, 2319400100023
P.Pavlopoulos, L.Perrot, M.T.Pigni, R.Plag, A.Plompen, 2319400100024
A.Plukis,A.Poch,J.Praena,C.Pretel,J.Quesada,R.Reifarth,2319400100025
M.Rosetti, C.Rubbia, G.Rudolf, P.Rullhusen, J.Salgado, 2319400100026
C.Santos,L.Sarchiapone,I.Savvidis, C.Stephan, J.L.Tain,2319400100027
L.Tassan-Got, L.Tavora, R.Terlizzi, G.Vannini, P.Vaz, 2319400100028
A.Ventura, D.Villamarin, M.C.Vincente, V.Vlachoudis, 2319400100029
R.Vlastou, F.Voss, S.Walter, M.Wiescher, K.Wisshak) 2319400100030
INSTITUTE (2ZZZNTF) n TOF collaboration. 2319400100031
(2ZZZCER) P.Cennini,E.Chiaveri,M.Dahlfors,A.Ferrari, 2319400100032
A.Herrera-Martinez,Y.Kadi,L.Sarchiapone,V.Vlachoudis. 2319400100033
(2ZZZGEL) A.Plompen,P.Rullhusen. 2319400100034
(2ITYBAU) G.Tagliente,N.Colonna,S.Marrone,R.Terlizzi. 2319400100035
(2ITYTRI) P.M.Milazzo,K.Fujii,U.Abbondanno,F.Belloni, 2319400100036
C.Moreau. 2319400100037
(2FR SAC) G.Aerts,S.Andriamonje,E.Berthoumieux,W.Dridi,2319400100038
F.Gunsing,L.Perrot, A.Plukis. 2319400100039
(2SPNSAU) H.Alvarez,I.Duran,C.Paradela, 2319400100040
(2SPNPCM) F.Alvarez-Velarde,D.Cano-Ott,M.Embid-Segura, 2319400100041
E.Gonzalez-Romero,C.Guerrero,T.Martinez,D.Villamarin, 2319400100042
M.C.Vincente. 2319400100043
(3POLLOU) J.Andrzejewski,J.Marganiec, 2319400100044
(2GERKFK) L.Audouin,I.Dillmann,M.Heil,F.Kaeppeler, 2319400100045
M.Mosconi,R.Plag,F.Voss,S.Walter,K.Wisshak. 2319400100046
(2AUSATI) G.Badurek,E.Jericha,H.Leeb,H.Oberhummer, 2319400100047
M.T.Pigni. 2319400100048
(2FR STR) P.Baumann,S.David,M.Kerveno,S.Lukic,G.Rudolf.2319400100049
(3CZRCHU) F.Becvar,M.Krticka. 2319400100050
(2SPNUPC) F.Calvino,G.Cortes,A.Poch,C.Pretel. 2319400100051
(2ITYPAD) M.Calviani,F.Gramegna,P.Mastinu,J.Praena. 2319400100052
(3ZZZIAE) R.Capote,A.Mengoni. 2319400100053
(2SPNSEU) R.Capote,J.Quesada. 2319400100054
(2PRTLFE) C.Carrappico,I.Goncalves,J.Salgado,C.Santos, 2319400100055
L.Tavora,P.Vaz. 2319400100056
(2PRTPRT) LIP - Coimbra and Departamento de Fisica da 2319400100057
Universidade de Coimbra, Portugal. 2319400100058
V.Chepel,R.Ferreira-Marques,A.Lindote,I.Lopes,F.Neves. 2319400100059
(1USANOT) A.Couture,S.O'Brien,M.Wiescher. 2319400100060
(2GERGSI) I.Dillmann,C.Domingo-Pardo,M.Heil, 2319400100061
J.Marganiec,R.Plag,R.Reifarth. 2319400100062
(2SPNVAL) C.Domingo-Pardo,J.L.Tain. 2319400100063
(2GRCARU) C.Eleftheriadis,C.Lamboudis,I.Savvidis. 2319400100064
(4ZZZDUB) W.Furman. 2319400100065
(2FR GRA) B.Haas. 2319400100066
(1USALAS) R.Haight,R.Reifarth. 2319400100067
(2GRCIOA) D.Karadimos,D.Karamanis,C.Papachristodoulou, 2319400100068
N.Patronis. 2319400100069
(2GRCATH) E.Kossionides. 2319400100070
(2ITYUBO) C.Massimi,G.Vannini. 2319400100071
(2GERPTB) M.Mosconi. 2319400100072
(2GRCTUA) C.Papadopoulos,R.Vlastou. 2319400100073
(2AUSVIE) A.Pavlik. 2319400100074
(2FR FR ) Pole Universitaire Leonard de Vinci, 2319400100075
Paris La Defense, Paris, France . 2319400100076
P.Pavlopoulos. 2319400100077
(2ITYBOL) M.Rosetti,A.Ventura. 2319400100078
(2ITYPAV) C.Rubbia. 2319400100079
(2FR PAR) C.Stephan,L.Tassan-Got. 2319400100080
REL-REF (I,,C.Borcea+,J,NIM/A,513,(3),524,2003) 2319400100081
Facility details . 2319400100082
(M,,U.Abbondanno+,J,NIM/A,521,454,2004) 2319400100083
PHWT - pulse height weighting technique. 2319400100084
FACILITY (SYNCY,2ZZZCER) 20-GeV/c proton synchro-cyclotron, 2319400100085
n-TOF facility, CERN. Pulsed proton beam of high 2319400100086
intensity of 7.E+12 protons per bunch. 2319400100087
INC-SOURCE (SPALL) Spallation reaction of fast protons on the 2319400100088
massive lead target moderated in a surrounding 2319400100089
5.8 cm thick water cooling layer surrounding the lead2319400100090
target.Pulse width 6 ns. 2319400100091
INC-SPECT Neutron flux 10**5 neutrons/cm2/pulse at the sample 2319400100092
position). Resolution in neutron energy is better than 2319400100093
0.1% in the range of the present measurement, i.e. 2319400100094
below 8 keV. Nearly symmetrical Gaussian-shaped beam 2319400100095
profile at the sample position. 2319400100096
The neutron flux was determined relative to the 2319400100097
235U(n,f) cross section by means of calibrated fission 2319400100098
chamber from PTB Braunschweig. During the measurement 2319400100099
the flux was checked online by a low-mass 6Li neutron 2319400100100
monitor. 2319400100101
METHOD (TOF) Flight path 187.5 m from spallation target to 2319400100102
sample position. 2319400100103
PART-DET (G) Prompt gamma-ray cascade following neutron capture.2319400100104
DETECTOR (SCIN) Two C6-D6 liquid scintillator cells as gamma 2319400100105
detectors placed perpendicular to neutron beam at a 2319400100106
distance of about 3 cm from beam axis and 9.2 cm 2319400100107
backward from the sample position. Directly coupled 2319400100108
to EMI-9823QKB photomultiplier tubes. The light output 2319400100109
of the detectors was calibrated at 662, 1173, 1332 keV 2319400100110
by means of 137Cs and 60Co reference sources. An 2319400100111
additional calibration point at 6.13 MeV was obtained 2319400100112
by means of a composite 238Pu/13C source. 2319400100113
(FISCH,IOCH) U-235 loaded parallel-plate fission 2319400100114
chamber from PTB Braunschweig - for neutron flux 2319400100115
measurement as well as Li-6 neutron flux monitors. 2319400100116
MONITOR (92-U-235(N,F),,SIG) For the neutron flux. 2319400100117
SAMPLE Zr-O2 oxide powder pressed to pellet of 22 mm diameter,2319400100118
thickness 3.5mm, mass 4.46 g, encapsulated twice in 2319400100119
inner Al and a welded outer Ti container, both with 2319400100120
0.2 mm thick walls. 93Zr activity was 62.6 MBq. 2319400100121
Isotope composition: 2319400100122
Zr-90 - 2.29%, Zr-91 - 18.61%, Zr-92 - 18.95%, 2319400100123
Zr-93 - 19.98, Zr-94 - 20.50%, Zr-96 - 19.67%. 2319400100124
Traces of Mo and S were also present in the sample - 2319400100125
below 0.01 %, the contribution of these impurities to 2319400100126
the measured capture yield was not negligible. 2319400100127
Au and Pb samples of the same diameter were used for 2319400100128
repeated neutron flux measurements and background runs.2319400100129
ANALYSIS The intrinsic efficiency of C6D6 detectors was modified2319400100130
by the pulse height weighting technique (PHWT). 2319400100131
CORRECTION For the stable zirconium isotopes, sample impurities, 2319400100132
and the various backgrounds. 2319400100133
For the energy resolution of the neutron beam, for the 2319400100134
Doppler broadening of cross-section line shapes, for 2319400100135
self-shielding and neutron multiple scattering. 2319400100136
HISTORY (20101014C) M.M. 2319400100137
ENDBIB 135 0 2319400100138
NOCOMMON 0 0 2319400100139
ENDSUBENT 138 0 2319400199999
SUBENT 23194009 20130511 22352319400900001
BIB 5 12 2319400900002
REACTION (40-ZR-93(N,G)40-ZR-94,,SIG,,MXW) MACS 2319400900003
ANALYSIS Results for restricted energy range were complemented2319400900004
for the neutron energy range above 8 keV with Zr-93 c-s2319400900005
from JENDL-4.0 library. 2319400900006
REL-REF (A,V0102163,Z.Y.Bao+,J,AND,76,70,2000) 2319400900007
Agree with recommended value of Z.Bao+ at 30 keV - 2319400900008
95+-10 mb . 2319400900009
ERR-ANALYS (DATA-ERR) Error includes: 2319400900010
(DATA-ERR1) Uncertainty of present data ( < 8 keV) - 5%2319400900011
(ERR-2) Uncertainty of evaluated data above 8 keV - 10%2319400900012
STATUS (TABLE) Table I of J,PR/C,87,014622,2013 . 2319400900013
(DEP,23194008) MACS for energy <8 keV. 2319400900014
ENDBIB 12 0 2319400900015
COMMON 2 3 2319400900016
DATA-ERR1 ERR-2 2319400900017
PER-CENT PER-CENT 2319400900018
5. 10. 2319400900019
ENDCOMMON 3 0 2319400900020
DATA 3 6 2319400900021
KT DATA DATA-ERR 2319400900022
KEV MB MB 2319400900023
5. 347. 19. 2319400900024
10. 215. 17. 2319400900025
15. 160. 14. 2319400900026
20. 129. 12. 2319400900027
25. 110. 10. 2319400900028
30. 96. 9. 2319400900029
ENDDATA 8 0 2319400900030
ENDSUBENT 29 0 2319400999999