ENTRY 30793 20190315 31883079300000001 SUBENT 30793001 20190315 31883079300100001 BIB 9 26 3079300100002 TITLE Absolute determination of the spontaneous fission 3079300100003 yields of 252Cf by radiochemical method 3079300100004 AUTHOR (Chen Qingjiang,Su Shuxin,Guo Jinru,Yang Jingxia, 3079300100005 Chen Yundong,Li Xueliang,Zhang Hongdi,Lin Fa, 3079300100006 Sun Shuying,Zhang Shulan) 3079300100007 INSTITUTE (3CPRAEP) 3079300100008 REFERENCE (J,JRN,111,63,1987) 3079300100009 (J,CST,20,161,1986) same data in table 3079300100010 (J,HFH,6,1,1984) same data in table 3079300100011 SAMPLE 252Cf dissolved and electro-deposited, covered with 3079300100012 VYNS film. 3079300100013 Fission fragments could pass through the film. 3079300100014 METHOD Fission fragments collected on Al catcher foils 3079300100015 (22 mm diam, 0.2 mm thick, 5 mm distance to source.) 3079300100016 (CHSEP) Catcher foils dissolved in acid with carriers, 3079300100017 separation by isotope exchange then purified. 3079300100018 DETECTOR (PROPC) 2-pi gas-flow for beta counting. 3079300100019 (SCIN) plastic for beta counting. 3079300100020 (NAICR) well type (75 mm x 75 mm). 3079300100021 Efficiency calibration with standard sources assayed by3079300100022 absolute 4pi-beta-gamma coincidence counting. 3079300100023 CORRECTION Chemical yield, decay, efficiencies of counters. 3079300100024 HISTORY (20010404C) ML 3079300100025 (20160624U) VS. ERR-ANALYS moved to 002-003. 3079300100026 DECAY-DATA corrected in 002. 3079300100027 (20190315A) On. Major revisions in 002-003. 3079300100028 ENDBIB 26 0 3079300100029 NOCOMMON 0 0 3079300100030 ENDSUBENT 29 0 3079300199999 SUBENT 30793002 20190315 31883079300200001 BIB 8 55 3079300200002 REACTION (98-CF-252(0,F)ELEM/MASS,CUM,FY) 3079300200003 FLAG (1.) gamma-counting 3079300200004 (2.) beta-counting 3079300200005 MISC-COL (MISC) number of determinations 3079300200006 DECAY-DATA ((1.)35-BR-83,2.39HR) 3079300200007 ((2.)38-SR-89,50.55D) 3079300200008 ((3.)38-SR-91,9.75HR) 3079300200009 ((4.)38-SR-92,2.7HR) 3079300200010 ((5.)39-Y-93-G,10.1HR) 3079300200011 ((6.)40-ZR-95,65.1D) 3079300200012 ((7.)40-ZR-97,17.0HR) 3079300200013 ((8.)42-MO-99,66.2HR) 3079300200014 ((9.)44-RU-103,39.35D) 3079300200015 ((10.)44-RU-105,4.44HR) 3079300200016 ((11.)44-RU-106,368.2D) 3079300200017 ((12.)46-PD-109-G,13.47HR) 3079300200018 ((13.)47-AG-111-G,7.47D) 3079300200019 ((14.)46-PD-112,21.12HR) 3079300200020 ((15.)47-AG-113-G,5.37HR) 3079300200021 ((16.)48-CD-115-G,53.38HR) 3079300200022 ((17.)48-CD-115-M,44.1D) 3079300200023 ((18.)48-CD-117-G,2.5HR) 3079300200024 ((19.)50-SN-121-G,27.06HR) 3079300200025 ((20.)50-SN-125-G,9.65D) 3079300200026 ((21.)51-SB-127,92.4HR) 3079300200027 ((22.)51-SB-129-G,4.32HR) 3079300200028 ((23.)53-I-131,8.04D) 8.04 hr in the article by mistake3079300200029 ((24.)52-TE-132,77.8HR) 3079300200030 ((25.)53-I-133-G,20.9HR) 3079300200031 ((26.)52-TE-134,41.8MIN) 3079300200032 ((27.)53-I-135,6.61HR) 3079300200033 ((28.)56-BA-139,82.7MIN) 3079300200034 ((29.)56-BA-140,12.79D) 3079300200035 ((30.)58-CE-141,32.55D) 3079300200036 ((31.)59-PR-143,13.58D) 3079300200037 ((32.)58-CE-144,284.3D) 3079300200038 ((33.)60-ND-147,10.98D) 3079300200039 ((34.)62-SM-153,46.8HR) 3079300200040 ((35.)63-EU-156,15.17D) 3079300200041 ((36.)65-TB-161,6.90D) 3079300200042 ERR-ANALYS (ERR-T) Quadature sum of the following uncertainties 3079300200043 (but 2*SD was used instead of SD): 3079300200044 (ERR-1,2.,12.) efficiency calibration (2-12%) 3079300200045 (ERR-2,1.,2.) chemical yield (1-2%) 3079300200046 (ERR-3,1.,2.) fission rate (1-2%) 3079300200047 (ERR-4,1.,15.) measured activity (1-15%) 3079300200048 (ERR-S,0.1,4.5) standard deviation SD (0.1-4.5%) 3079300200049 COMMENT By compiler: 3079300200050 The cumulative yields correspond to total chain 3079300200051 yields, except for A=113,115,121,125,134,135, 3079300200052 for which the chain yields are given in 30793.003. 3079300200053 STATUS (TABLE) Table 1 of J.Radioanal.Nucl.Chem.111(1987)63 3079300200054 HISTORY (20160624U) VS. ERR-ANALYS moved from 001 and coded 3079300200055 inform. added. DECAY-DATA corrected (Memo CP-D/888). 3079300200056 (20190315A) On. ERR-ANALYS revised. 3079300200057 ENDBIB 55 0 3079300200058 NOCOMMON 0 0 3079300200059 DATA 8 36 3079300200060 MASS ELEMENT ISOMER DATA ERR-T FLAG 3079300200061 MISC DECAY-FLAG 3079300200062 NO-DIM NO-DIM NO-DIM PC/FIS PC/FIS NO-DIM 3079300200063 NO-DIM NO-DIM 3079300200064 83. 35. 0.037 0.006 2. 3079300200065 3. 1. 3079300200066 89. 38. 0.347 0.016 2. 3079300200067 5. 2. 3079300200068 91. 38. 0.582 0.026 1. 3079300200069 4. 3. 3079300200070 92. 38. 0.725 0.046 1. 3079300200071 4. 4. 3079300200072 93. 39. 0.931 0.058 2. 3079300200073 4. 5. 3079300200074 95. 40. 1.15 0.04 1. 3079300200075 4. 6. 3079300200076 97. 40. 1.57 0.05 1. 3079300200077 4. 7. 3079300200078 99. 42. 2.52 0.09 1. 3079300200079 4. 8. 3079300200080 103. 44. 5.18 0.21 1. 3079300200081 5. 9. 3079300200082 105. 44. 5.70 0.37 1. 3079300200083 4. 10. 3079300200084 106. 44. 6.51 0.29 1. 3079300200085 5. 11. 3079300200086 109. 46. 6.48 0.32 1. 3079300200087 3. 12. 3079300200088 111. 47. 5.08 0.21 1. 3079300200089 4. 13. 3079300200090 112. 46. 4.27 0.29 1. 3079300200091 3. 14. 3079300200092 113. 47. 0. 4.23 0.30 1. 3079300200093 5. 15. 3079300200094 115. 48. 0. 2.49 0.12 1. 3079300200095 5. 16. 3079300200096 115. 48. 1. 0.165 0.019 1. 3079300200097 5. 17. 3079300200098 117. 48. 0. 1.36 0.12 1. 3079300200099 3. 18. 3079300200100 121. 50. 0. 0.0713 0.007 2. 3079300200101 4. 19. 3079300200102 125. 50. 0. 0.00760 0.0011 2. 3079300200103 4. 20. 3079300200104 127. 51. 0.0748 0.0055 1. 3079300200105 4. 21. 3079300200106 129. 51. 0.402 0.027 1. 3079300200107 4. 22. 3079300200108 131. 53. 1.35 0.09 1. 3079300200109 3. 23. 3079300200110 132. 52. 2.15 0.09 1. 3079300200111 6. 24. 3079300200112 133. 53. 3.02 0.29 1. 3079300200113 3. 25. 3079300200114 134. 52. 3.70 0.37 1. 3079300200115 4. 26. 3079300200116 135. 53. 4.55 0.39 1. 3079300200117 3. 27. 3079300200118 139. 56. 5.66 0.34 1. 3079300200119 4. 28. 3079300200120 140. 56. 5.77 0.20 1. 3079300200121 4. 29. 3079300200122 141. 58. 5.97 0.29 2. 3079300200123 6. 30. 3079300200124 143. 59. 5.86 0.55 2. 3079300200125 3. 31. 3079300200126 144. 58. 5.70 0.35 2. 3079300200127 8. 32. 3079300200128 147. 60. 4.14 0.16 2. 3079300200129 5. 33. 3079300200130 153. 62. 1.23 0.05 2. 3079300200131 3. 34. 3079300200132 156. 63. 0.70 0.09 1. 3079300200133 3. 35. 3079300200134 161. 65. 0.19 0.02 2. 3079300200135 5. 36. 3079300200136 ENDDATA 76 0 3079300200137 ENDSUBENT 136 0 3079300299999 SUBENT 30793003 20190315 31883079300300001 BIB 5 20 3079300300002 REACTION (98-CF-252(0,F)MASS,CHN,FY) 3079300300003 FLAG Method o obtain the chain yield using the cumulative 3079300300004 yield(s) of the same chain: 3079300300005 (1.) from decay branching in the chain (no data given);3079300300006 (2.) sum of cadmium isomer yields; 3079300300007 (3.) using fractional yields by K.F.Flynn et al., J. 3079300300008 Inorg.Nucl.Chem.37(1975)881; 3079300300009 (4.) using fractional yields by S.B.Manohar, Phys.Rev. 3079300300010 17(1978)188. 3079300300011 ERR-ANALYS (ERR-T) Quadature sum of the following uncertainties 3079300300012 (but 2*SD was used instead of SD): 3079300300013 (ERR-1,2.,12.) efficiency calibration (2-12%) 3079300300014 (ERR-2,1.,2.) chemical yield (1-2%) 3079300300015 (ERR-3,1.,2.) fission rate (1-2%) 3079300300016 (ERR-4,1.,15.) measured activity (1-15%) 3079300300017 (ERR-S,0.1,4.5) standard deviation SD (0.1-4.5%) 3079300300018 STATUS (TABLE) Table 1 of J.Radioanal.Nucl.Chem.111(1987)63 3079300300019 HISTORY (20160624U) VS. ERR-ANALYS moved from 001 and coded 3079300300020 inf. added. 3079300300021 (20190315A) On. ERR-ANALYS revised. 3079300300022 ENDBIB 20 0 3079300300023 NOCOMMON 0 0 3079300300024 DATA 4 6 3079300300025 MASS DATA ERR-T FLAG 3079300300026 NO-DIM PC/FIS PC/FIS NO-DIM 3079300300027 113. 4.70 0.33 1. 3079300300028 115. 2.66 0.14 2. 3079300300029 121. 0.0814 0.007 3. 3079300300030 125. 0.0160 0.0023 3. 3079300300031 134. 4.68 0.47 4. 3079300300032 135. 4.68 0.40 4. 3079300300033 ENDDATA 8 0 3079300300034 ENDSUBENT 33 0 3079300399999 SUBENT 30793004 20190315 31883079300400001 BIB 2 3 3079300400002 REACTION 1(98-CF-252(0,F),,AP,LF) 3079300400003 2(98-CF-252(0,F),,AP,HF) 3079300400004 STATUS (TABLE) Text (p69) of J.Radioanal.Nucl.Chem.111(1987)633079300400005 ENDBIB 3 0 3079300400006 NOCOMMON 0 0 3079300400007 DATA 2 1 3079300400008 DATA 1DATA 2 3079300400009 NO-DIM NO-DIM 3079300400010 106.39 141.82 3079300400011 ENDDATA 3 0 3079300400012 ENDSUBENT 11 0 3079300499999 ENDENTRY 4 0 3079399999999