ENTRY 32793 20190622 31903279300000001
SUBENT 32793001 20190622 31903279300100001
BIB 14 77 3279300100002
TITLE Mass distributions of 22.0 MeV neutron-induced 3279300100003
fission of 238U 3279300100004
AUTHOR (Liu Yonghui,Yang Yi,Feng Jing,Bao Jie,Li Ze,Qi Bujia, 3279300100005
Tang Hongqing,Zhou Zuying,Cui Anzhi,Ruan Xichao, 3279300100006
Sun Hongqing,Zhang Shengdong,Guo Jingru) 3279300100007
INSTITUTE (3CPRAEP) 3279300100008
REFERENCE (P,INDC(CPR)-056,2,2001) 3279300100009
FACILITY (VDGT,3CPRAEP) The HI-13 Tandem 3279300100010
INC-SOURCE (D-T) The tritium gas chamber was used to produce 3279300100011
neutrons by the bombardment with the deuteron beam. 3279300100012
SAMPLE Natural uranium metal disks of 1.6 cm diameter X 0.05 3279300100013
cm thickness with an average weight of about 1.5 g, 3279300100014
packed in 0.2 mm thickness pure aluminium foil. 3279300100015
DETECTOR (HPGE) A HPGe-92X Spectrum Master of gamma- 3279300100016
spectrometer. The resolution of the 120 cm3 HPGe 3279300100017
detector was 1.85 keV (FWHM) for the 1.33 MeV gamma 3279300100018
ray of Co-60. 3279300100019
(FISCH) The sample sandwiched between two 3279300100020
standardized thin samples was mounted in a double 3279300100021
fission chamber, which covered with Cd of 1 mm 3279300100022
thickness. The efficiency of the fission chamber was 3279300100023
checked by 197Au(n,g) 198Au reaction with thermal 3279300100024
neutrons. 3279300100025
METHOD (TOF) Time of flight technique was used to measure 3279300100026
the neutron spectrum. 3279300100027
(GSPEC) Fission product activities were measured by 3279300100028
HPGe gamma-ray spectrometry. Four samples were 3279300100029
irradiated for a period varying from 0.5 to 30 h at a 3279300100030
distance of about 5 cm from the neutron source in the 3279300100031
direction of zero degree. 3279300100032
(ABSFY) Fission rate was monitored by fission chamber. 3279300100033
DECAY-DATA (35-BR-84-G,31.8MIN,DG,881.2,0.42) 3279300100034
(36-KR-85-M,268.8MIN,DG,304.9,0.140) 3279300100035
(36-KR-87,76.3MIN,DG,402.6,0.496) 3279300100036
(36-KR-88,170.4MIN,DG,196.3,0.2558) 3279300100037
(37-RB-89,15.15MIN,DG,1248.1,0.4257) 3279300100038
(38-SR-91,577.8MIN,DG,555.6,0.615) 3279300100039
(38-SR-92,162.6MIN,DG,1384.1,0.90) 3279300100040
(39-Y-93-G,610.8MIN,DG,266.9,0.073) 3279300100041
(39-Y-94,18.7MIN,DG,918.8,0.56) 3279300100042
(40-ZR-95,92189.MIN,DG,756.7,0.5446) 3279300100043
(40-ZR-97,1014.MIN,DG,742.7,0.9306) 3279300100044
(42-MO-99,3956.7MIN,DG,739.5,0.1214) 3279300100045
(43-TC-101,14.2MIN,DG,306.5,0.88) 3279300100046
(44-RU-103,56526.MIN,DG,497.1,0.909) 3279300100047
(43-TC-104,18.3MIN,DG,358.,0.89) 3279300100048
(44-RU-105,266.4MIN,DG,724.2,0.473) 3279300100049
(47-AG-112,187.8MIN,DG,617.5,0.435) 3279300100050
(48-CD-115-G,3208.3MIN,DG,336.3,0.501) 3279300100051
(51-SB-127,5544.MIN,DG,473.2,0.256) 3279300100052
(50-SN-128-G,59.1MIN,DG,482.,0.59) 3279300100053
(53-I-131,11577.6MIN,DG,637.,0.0717) 3279300100054
(52-TE-132,4694.4MIN,DG,228.3,0.882) 3279300100055
(53-I-133-G,1248.MIN,DG,529.8,0.87) 3279300100056
(53-I-134-G,52.6MIN,DG,847.1,0.954) 3279300100057
(53-I-135,394.2MIN,DG,1131.5,0.2274) 3279300100058
(55-CS-138-G,33.41MIN,DG,1435.8,0.763) 3279300100059
(56-BA-140,18354.MIN,DG,537.3,0.2439) 3279300100060
(56-BA-141,18.27MIN,DG,190.3,0.46) 3279300100061
(57-LA-142,91.1MIN,DG,641.3,0.474) 3279300100062
(58-CE-143,1980.MIN,DG,293.3,0.428) 3279300100063
(59-PR-146,24.15MIN,DG,453.9,0.48) 3279300100064
(60-ND-147,15811.2MIN,DG,531.,0.131) 3279300100065
CORRECTION Corrections were made for the gamma self-absorption, 3279300100066
gamma geometry, gamma cascade coincidence losses and 3279300100067
fission induced by background neutrons. 3279300100068
ERR-ANALYS (DATA-ERR) Uncertainties (1 sigma) of the yields were 3279300100069
obtained by consideration of all known sources of 3279300100070
systematic and random errors such as mass 3279300100071
determination of standard sample, detector efficiency 3279300100072
of HPGe spectra system, statistic error of gamma-ray 3279300100073
peak area, and corrections, with the usual rules of 3279300100074
error propagation. Uncertainties of decay data are 3279300100075
not included. 3279300100076
STATUS (TABLE) Data were obtained from TABLE 2 of 3279300100077
P,INDC(CPR)-056,2,2001 3279300100078
HISTORY (20190622C) Compiled by Liu Lile (CNDC) 3279300100079
ENDBIB 77 0 3279300100080
COMMON 1 3 3279300100081
EN 3279300100082
MEV 3279300100083
22.0 3279300100084
ENDCOMMON 3 0 3279300100085
ENDSUBENT 84 0 3279300199999
SUBENT 32793002 20190622 31903279300200001
BIB 1 1 3279300200002
REACTION (92-U-238(N,F)MASS,CHN,FY) 3279300200003
ENDBIB 1 0 3279300200004
NOCOMMON 0 0 3279300200005
DATA 3 32 3279300200006
MASS DATA DATA-ERR 3279300200007
NO-DIM PC/FIS PC/FIS 3279300200008
84. 0.79 0.108 3279300200009
85. 1.63 0.096 3279300200010
87. 1.90 0.041 3279300200011
88. 2.67 0.052 3279300200012
89. 3.68 0.107 3279300200013
91. 3.58 0.019 3279300200014
92. 3.94 0.017 3279300200015
93. 4.21 0.237 3279300200016
94. 3.99 0.058 3279300200017
95. 5.81 0.089 3279300200018
97. 6.09 0.180 3279300200019
99. 5.99 0.103 3279300200020
101. 5.03 0.083 3279300200021
103. 4.02 0.024 3279300200022
104. 3.67 0.093 3279300200023
105. 3.32 0.025 3279300200024
112. 1.63 0.016 3279300200025
115. 1.41 0.040 3279300200026
127. 1.78 0.024 3279300200027
128. 2.06 0.865 3279300200028
131. 3.96 0.073 3279300200029
132. 4.31 0.053 3279300200030
133. 5.69 0.021 3279300200031
134. 6.04 0.178 3279300200032
135. 6.03 0.232 3279300200033
138. 4.76 0.126 3279300200034
140. 4.05 0.044 3279300200035
141. 3.81 0.213 3279300200036
142. 3.52 0.070 3279300200037
143. 3.64 0.019 3279300200038
146. 2.18 0.129 3279300200039
147. 1.75 0.140 3279300200040
ENDDATA 34 0 3279300200041
ENDSUBENT 40 0 3279300299999
ENDENTRY 2 0 3279399999999