ENTRY 32721 20140403 31643272100000001 SUBENT 32721001 20140403 31643272100100001 BIB 10 24 3272100100002 TITLE Determination of nuclear fission number by high-energy 3272100100003 delayed gamma-rays 3272100100004 AUTHOR (YANG Yang, FENG Jing, YANG Yi, LIU Shi-long, 3272100100005 WANG Zhao-hui, SU Xiao-bin, HOU Long) 3272100100006 INSTITUTE (3CPRAEP,3CPRLNZ) 3272100100007 REFERENCE (J,CST,47,(4),517,2013) 3272100100008 FACILITY (REAC,3CPRAEP) 35 kW Miniature Neutron Source Reactor. 3272100100009 METHOD (FPGAM) The yields of fission products 89Rb, 92Sr, 3272100100010 94Y and 138Cs at thermal neutron were obtained by 3272100100011 applying the emission rate of high-energy delayed 3272100100012 gamma-rays per fission. 3272100100013 DETECTOR (NAICR,HPGE) The geometry of NaI detector is 300x200 3272100100014 mm in diameter and length, the energy non-linearity is 3272100100015 less than 2.%, and energy discrimination for 137Cs 3272100100016 0.662 MeV gamma ray is 29%. 3272100100017 ANALYSIS Decay gamma spectrum area was determined with SPAN 3272100100018 code, and cumulative fission yield was calculated by 3272100100019 FYAUTOLS code. 3272100100020 (DECAY) To subtract the contamination from interfere 3272100100021 nuclides, the half-life analysis method was adopted. 3272100100022 STATUS (TABLE) Data were taken from Table 3 at page 519 in 3272100100023 J,CST,47,(4),517,201304. 3272100100024 HISTORY (20140403C) Compiled by ZHUANG Youxiang and 3272100100025 CHEN Guochang (CNDC). 3272100100026 ENDBIB 24 0 3272100100027 COMMON 1 3 3272100100028 EN-DUMMY 3272100100029 EV 3272100100030 0.0253 3272100100031 ENDCOMMON 3 0 3272100100032 ENDSUBENT 31 0 3272100199999 SUBENT 32721002 20140403 31643272100200001 BIB 4 8 3272100200002 REACTION (92-U-235(N,F)ELEM/MASS,CUM,FY) 3272100200003 SAMPLE The sample 235U: 2.966 ug. 3272100200004 METHOD (ACTIV) Irradiated for 15 second. 3272100200005 ERR-ANALYS (ERR-T) Total composition uncertainty. 3272100200006 (ERR-S,,1.7) Uncertainty of counting rate. 3272100200007 (ERR-2,,2.0) Uncertainty of efficiency. 3272100200008 (ERR-3,,3.0) Uncertainty of delayed gamma-rays 3272100200009 emission rate. 3272100200010 ENDBIB 8 0 3272100200011 NOCOMMON 0 0 3272100200012 DATA 4 4 3272100200013 ELEMENT MASS DATA ERR-T 3272100200014 NO-DIM NO-DIM PC/FIS PC/FIS 3272100200015 37. 89. 4.63 0.21 3272100200016 38. 92. 7.57 0.76 3272100200017 39. 94. 5.12 0.39 3272100200018 55. 138. 6.45 0.35 3272100200019 ENDDATA 6 0 3272100200020 ENDSUBENT 19 0 3272100299999 SUBENT 32721003 20140403 31643272100300001 BIB 4 8 3272100300002 REACTION (92-U-235(N,F)ELEM/MASS,CUM,FY) 3272100300003 SAMPLE The sample 235U: 3.693 ug. 3272100300004 METHOD (ACTIV) Irradiated for 100 second. 3272100300005 ERR-ANALYS (ERR-T) Total composition uncertainty. 3272100300006 (ERR-S,,1.1) Uncertainty of counting rate. 3272100300007 (ERR-2,,2.0) Uncertainty of efficiency. 3272100300008 (ERR-3,,3.0) Uncertainty of delayed gamma-rays 3272100300009 emission rate. 3272100300010 ENDBIB 8 0 3272100300011 NOCOMMON 0 0 3272100300012 DATA 4 4 3272100300013 ELEMENT MASS DATA ERR-T 3272100300014 NO-DIM NO-DIM PC/FIS PC/FIS 3272100300015 37. 89. 4.13 0.14 3272100300016 38. 92. 5.87 0.07 3272100300017 39. 94. 4.93 0.13 3272100300018 55. 138. 6.50 0.27 3272100300019 ENDDATA 6 0 3272100300020 ENDSUBENT 19 0 3272100399999 SUBENT 32721004 20140403 31643272100400001 BIB 3 3 3272100400002 REACTION (92-U-235(N,F)ELEM/MASS,CUM,FY) 3272100400003 SAMPLE The sample 235U: 41.7 ug. 3272100400004 METHOD (ACTIV) Irradiated for 5 second. 3272100400005 ENDBIB 3 0 3272100400006 NOCOMMON 0 0 3272100400007 DATA 4 4 3272100400008 ELEMENT MASS DATA ERR-T 3272100400009 NO-DIM NO-DIM PC/FIS PC/FIS 3272100400010 37. 89. 4.60 0.12 3272100400011 38. 92. 5.85 0.13 3272100400012 39. 94. 5.11 0.12 3272100400013 55. 138. 6.69 0.35 3272100400014 ENDDATA 6 0 3272100400015 ENDSUBENT 14 0 3272100499999 SUBENT 32721005 20140403 31643272100500001 BIB 3 5 3272100500002 REACTION (92-U-235(N,F)ELEM/MASS,CUM,FY,,,DERIV) 3272100500003 ANALYSIS The average-value of the above-mentioned three samples.3272100500004 STATUS (DEP,32721002) Yields for 2.966 ug sample 3272100500005 (DEP,32721003) Yields for 3.693 ug sample 3272100500006 (DEP,32721004) Yields for 41.7 ug sample 3272100500007 ENDBIB 5 0 3272100500008 NOCOMMON 0 0 3272100500009 DATA 4 4 3272100500010 ELEMENT MASS DATA ERR-T 3272100500011 NO-DIM NO-DIM PC/FIS PC/FIS 3272100500012 37. 89. 4.46 0.08 3272100500013 38. 92. 5.89 0.06 3272100500014 39. 94. 5.03 0.09 3272100500015 55. 138. 6.54 0.18 3272100500016 ENDDATA 6 0 3272100500017 ENDSUBENT 16 0 3272100599999 ENDENTRY 5 0 3272199999999