ENTRY 32507 20101206 31473250700000001
SUBENT 32507001 20101206 31473250700100001
BIB 15 43 3250700100002
TITLE The measurement of neutron capture cross section of 3250700100003
tungsten and gadolinium in the energy region from 560 3250700100004
to 1610 keV 3250700100005
FACILITY (VDG,3CPRSIU) Sichuan University pulsed Van de Graff 3250700100006
accelerator. Resolution time 10ns,F=2MHz,average 3250700100007
I=2-4 micro A. 3250700100008
INSTITUTE (3CPRSIU) 3250700100009
REFERENCE (J,PHE,12,(1),91,198801) 3250700100010
AUTHOR (Xiang Zhengyu,Mu Yunshan,Li Yexiang,Wang Shiming, 3250700100011
Xu Haishan) 3250700100012
INC-SOURCE (P-T) 3250700100013
DETECTOR (SCIN,LONGC) 3250700100014
Capture detector: a large scintillator,shaped in appro-3250700100015
ximate sphere,diameter 1.0m. 3250700100016
Monitor: long counter. 3250700100017
Neutron detector: a small scintillator. 3250700100018
SAMPLE Disk,diameter 9cm,purity 99.9%. 3250700100019
METHOD (TOF,COINC) Neutrons are collimated by parafin 3250700100020
(containing lithium) copper and lead. The large 3250700100021
scintillation detector is shielded by 10cm thick lead 3250700100022
and 40cm thick paraffin. 3250700100023
The sample is located in the center of large scintilla-3250700100024
tor. Coincidence technique and TOF method are used to 3250700100025
reduce background. 3250700100026
MONITOR (79-AU-197(N,G)79-AU-198,,SIG) The data taken from 3250700100027
Jiang's evaluation(HSJ-81183(1981)). 3250700100028
MONIT-REF (,Jiang+,R,HSJ-81183,1981) 3250700100029
CORRECTION Multiple scattering,calculated with Monte-Carlo method 3250700100030
and checked in some energy points in experiment,using 3250700100031
the samples with different thickness. 3250700100032
ERR-ANALYS (ERR-T) The error mainly contains: 3250700100033
(ERR-1).the extrapolation of capture gamma spectrum 8%;3250700100034
(MONIT-ERR).standard cross section 7%; 3250700100035
(ERR-2).correction to multiple scattering 2%; 3250700100036
(ERR-S,2.,5.).statistical error 2-5%; 3250700100037
(ERR-3)the detector efficiency 2%. 3250700100038
total error about 12%. 3250700100039
STATUS (TABLE) Data taken from the authors. 3250700100040
(APRVD) Proof-copy was approved by author and author's 3250700100041
corrections have been entered in Dec.,1989. 3250700100042
HISTORY (19901012C) Compiled by Liu Tingjin,CNDC. 3250700100043
(20101030A) SD:Updated to new date formats,lower case. 3250700100044
Cosmetic changes 3250700100045
ENDBIB 43 0 3250700100046
COMMON 4 3 3250700100047
ERR-1 ERR-2 ERR-3 MONIT-ERR 3250700100048
PER-CENT PER-CENT PER-CENT PER-CENT 3250700100049
8. 2. 2. 7. 3250700100050
ENDCOMMON 3 0 3250700100051
ENDSUBENT 50 0 3250700199999
SUBENT 32507002 20101206 31473250700200001
BIB 1 1 3250700200002
REACTION (74-W-0(N,G),,SIG) 3250700200003
ENDBIB 1 0 3250700200004
NOCOMMON 0 0 3250700200005
DATA 3 6 3250700200006
EN DATA ERR-T 3250700200007
KEV MB MB 3250700200008
560. 59.1 7. 3250700200009
770. 55.4 6. 3250700200010
980. 62.0 7. 3250700200011
1160. 66.9 8. 3250700200012
1340. 65.1 8. 3250700200013
1610. 59.0 7. 3250700200014
ENDDATA 8 0 3250700200015
ENDSUBENT 14 0 3250700299999
SUBENT 32507003 20101206 31473250700300001
BIB 1 1 3250700300002
REACTION (64-GD-0(N,G),,SIG) 3250700300003
ENDBIB 1 0 3250700300004
NOCOMMON 0 0 3250700300005
DATA 3 6 3250700300006
EN DATA ERR-T 3250700300007
KEV MB MB 3250700300008
560. 164.1 19. 3250700300009
770. 142.6 17. 3250700300010
980. 136.6 16. 3250700300011
1160. 108.5 13. 3250700300012
1340. 102.5 12. 3250700300013
1610. 86.4 10. 3250700300014
ENDDATA 8 0 3250700300015
ENDSUBENT 14 0 3250700399999
ENDENTRY 3 0 3250799999999