ENTRY 32630 20101207 31473263000000001 SUBENT 32630001 20101207 31473263000100001 BIB 15 38 3263000100002 TITLE The absolute determination of cumulative yields of 3263000100003 several nuclides from 14.9 MeV neutron-induced fission 3263000100004 of U-238 3263000100005 AUTHOR (Liu Conggui) 3263000100006 + Cumulative Yield Group 3263000100007 INSTITUTE (3CPRAEP) 3263000100008 REFERENCE (J,HFH,2,(4),193,198011) 3263000100009 SAMPLE Metallic uranium foil, diameter=16 mm, 3263000100010 weight=600-800 mg. 3263000100011 FACILITY (CCW,3CPRAEP) 600 KV Cockcroft Walton accelerator 3263000100012 INC-SOURCE (D-T) 250 keV deuteron beam bombarding T-Ti target, 3263000100013 thickness=0.8-1.6 mg/cm2, neutron intensity= 3263000100014 (2-20) x 10**9 neutrons/sec. 3263000100015 METHOD (RCHEM) 3263000100016 DETECTOR (FISCH) Double fission ionization chamber was used for 3263000100017 fission rate absolute measurement. 3263000100018 (NAICR,GEMUC) the Nai(Tl) crystal detector was used for3263000100019 gamma detection and low-background 2Pi beta counter 3263000100020 was used for beta detection. 3263000100021 MONITOR Absolute measurement 3263000100022 DECAY-DATA No information given 3263000100023 ERR-ANALYS (ERR-T) Total error was given, it consists of: 3263000100024 . accidental error (statistical error) and 3263000100025 (ERR-SYS,2.1,3.7) systematic error (2.1-3.7%) which 3263000100026 mainly including the detector efficiency error 3263000100027 (1.5-3.3%) and fission rate measurement error (1.5%).3263000100028 The errors due to the correction for 3263000100029 fission yield contributed by the experimental hall 3263000100030 scattering neutrons and d-d neutrons and sample 3263000100031 weight determination as well as the decay constant 3263000100032 can be neglected. 3263000100033 CORRECTION Correction was made for fission induced by low energy 3263000100034 neutrons which were from experimental hall scattering 3263000100035 and d-d reaction. 3263000100036 STATUS (TABLE) Data taken from Table 3 of J,HFH,vol.2, 3263000100037 No.4,p.193,19803263000100038 HISTORY (19950915C) Compiled by Liang Qichang, CNDC. 3263000100039 (20100219A) SD:Updated to new date formats,lower case. 3263000100040 ENDBIB 38 0 3263000100041 COMMON 2 3 3263000100042 EN EN-ERR 3263000100043 MEV MEV 3263000100044 14.9 0.46 3263000100045 ENDCOMMON 3 0 3263000100046 ENDSUBENT 45 0 3263000199999 SUBENT 32630002 20101207 31473263000200001 BIB 1 1 3263000200002 REACTION (92-U-238(N,F)ELEM/MASS,CUM,FY) 3263000200003 ENDBIB 1 0 3263000200004 NOCOMMON 0 0 3263000200005 DATA 4 6 3263000200006 ELEMENT MASS DATA ERR-T 3263000200007 NO-DIM NO-DIM PC/FIS PC/FIS 3263000200008 40. 95. 4.96 0.22 3263000200009 42. 99. 5.44 0.20 3263000200010 44. 103. 4.75 0.23 3263000200011 44. 106. 2.51 0.13 3263000200012 58. 144. 4.01 0.21 3263000200013 60. 147. 2.13 0.11 3263000200014 ENDDATA 8 0 3263000200015 ENDSUBENT 14 0 3263000299999 ENDENTRY 2 0 3263099999999