ENTRY 30751 20160708 3075100000001 SUBENT 30751001 20160708 20161117 3075100100001 BIB 11 30 3075100100002 TITLE Mass distribution in 8.3 MeV neutron-induced fission 3075100100003 of U-238 3075100100004 AUTHOR (Li Ze,Zhang Chunhua,Liu Conggui,Wang Xiuzhi,Qi Linkun,3075100100005 Cui Anzhi,Lu Huijun,Zhang Sujing,Liu Yonghui, 3075100100006 Ju Changxin,Liu Daming, Tang Peija,Meng Jiangchen, 3075100100007 Jing Kexing) 3075100100008 INSTITUTE (3CPRAEP) 3075100100009 REFERENCE (J,CNP,7,(2),97,198505) in Chinese, English abstract 3075100100010 SAMPLE Natural metallic uranium, disk shaped foils of 16 mm 3075100100011 diameter, sealed in 0.2 mm aluminium foil. 3075100100012 MONITOR Absolute measurement of fission rate 3075100100013 DETECTOR (FISCH) Double-fission chamber containing standardized 3075100100014 thin deposits of U-238, attached to the sample. 3075100100015 FACILITY (CYCLO,3CPRAEP) 3075100100016 INC-SOURCE (D-D).,Neutron flux=2.x10**7 n/cm2/s.The background of 3075100100017 low energy neutrons (2-6 MeV) is less than 3.5 %. 3075100100018 COMMENT With the results of both methods, 3075100100019 70.45 % of the yields in the light mass peak, and 3075100100020 74.133 % of the yields in the heavy mass peak 3075100100021 have been measured. Together with interpolated and 3075100100022 extrapolated chain yields, the sums of yield in the 3075100100023 light and heavy mass peak are 101.52 and 100.28 % per 3075100100024 fission respectively. 3075100100025 The average mass derived is: 3075100100026 97.3 for the light mass peak, and 3075100100027 138.3 for the heavy mass peak. 3075100100028 From these data, nu-bar=3.4+-0.2 is derived. 3075100100029 HISTORY (19871210C) by WD and ML 3075100100030 (20090725A) SD:Updated to new date formats,lower case. 3075100100031 (20160624U) VS. DECAY-DATA corrected in 002. 3075100100032 ENDBIB 30 0 3075100100033 COMMON 3 3 3075100100034 EN +EN-ERR -EN-ERR 3075100100035 MEV MEV MEV 3075100100036 8.27 0.17 0.36 3075100100037 ENDCOMMON 3 0 3075100100038 ENDSUBENT 37 0 3075100199999 SUBENT 30751002 20160708 20161117 3075100200001 BIB 11 155 3075100200002 REACTION (92-U-238(N,F)MASS,CHN,FY) 3075100200003 METHOD (FPGAM) Direct gamma-ray spectroscopy of unseparated 3075100200004 fission products 3075100200005 Irradiation: 30 min to 2 hrs for short lived, 3075100200006 5 to 25 hrs for long lived fission products. 3075100200007 Cooling time: no information 3075100200008 Measurements: repeated, following 2-4 half-lives decay 3075100200009 of fission products. 3075100200010 Of 13 samples, 217 spectra were taken altogether. 3075100200011 Each spectrum was recorded for about: 3075100200012 15 minutes for short lived fission products, 3075100200013 1-2 hours for long lived fission products. 3075100200014 Chain yields were derived from measured cumulative 3075100200015 yields. 3075100200016 SAMPLE 13 Samples weighing 0.6-1.5 grams 3075100200017 DETECTOR (GELI) 130 cm3 coaxial Ge(Li) detector 3075100200018 resolution: 1.85 keV (FWHM) at 1332.5 keV 3075100200019 Scorpio-3000 multichannel analysis computer system 3075100200020 Detector efficiency calibration by 4-Pi beta-gamma 3075100200021 coincidence technique using the following sources: 3075100200022 Am-241,Nd-147,Ce-144,Ce-141,Mo-99,Ag-111,Na-22, 3075100200023 Cs-137,Zr-95,Sc-46,Co-60 and Ta-182. 3075100200024 Uncertainty of efficiency curve: 4.2% below 264.6 keV3075100200025 and 2.4% above. 3075100200026 ANALYSIS Standard equations for production and decay of fission 3075100200027 products including parent-daughter relationships were3075100200028 used to deduce cumulative fission yields. 3075100200029 Chain yields were derived from cumulative yields by 3075100200030 correcting for the difference using published 3075100200031 empirical fractional yields (see 'CORRECTION') 3075100200032 CORRECTION of recorded gamma-ray spectra applied for: 3075100200033 Gamma-ray self absorption in sample 3075100200034 Pulse pile-up in detector-analyser system 3075100200035 Sum-peaks from chance coincident cascade gamma-rays 3075100200036 Correction for the difference between total chain yield3075100200037 and measured cumulative yield: 3075100200038 The data and semiempirical formula of D.R.Nethaway, 3075100200039 UCRL-51640 (1974), was used to calculate the ratio 3075100200040 YB/YA 3075100200041 where: YB=independent yield of measured product 3075100200042 YA=cumulative yield of its precursor 3075100200043 The corrections applied were less than 2% except for 3075100200044 I-134,where it was 8%. 3075100200045 Compiler's comment: 3075100200046 The semiempirical formula given in UCRL-51640 can be 3075100200047 used to derive Zp-values for incident neutron 3075100200048 energies not tabulated. Fractional yields can be 3075100200049 obtained from Tables for given values of Z-Zp. 3075100200050 No explanation is given on how chain yields 3075100200051 were derived using the ratio YB/YA defined above. 3075100200052 Also,from fractional yields tabulated in UCRL-51640,the3075100200053 8% correction for I-134 is doubtful. On the other 3075100200054 hand, the correction for Sn-128 should be significant.3075100200055 REL-REF (M,,D.R.Nethaway,R,UCRL-51640,1974) See 'CORRECTION' 3075100200056 ERR-ANALYS (DATA-ERR) Absolute total error (Table 2 of reference) 3075100200057 (ERR-S) Random error in peak area determination 3075100200058 (ERR-1) Error of fission rate determination 3075100200059 (ERR-2) Error of Ge(Li) detector efficiency 3075100200060 (ERR-3) Error of pulse pile-up correction 3075100200061 (ERR-4) Error of sum-peak correction 3075100200062 (ERR-5) Error of self-absorption correction 3075100200063 (ERR-6) Error in spectrum analysis (in the case of 3075100200064 complex spectra,especially for overlapping 3075100200065 gamma-ray peaks) 3075100200066 (ERR-T) Total relative error, including all individual 3075100200067 errors listed above,but excluding errors of the3075100200068 nuclear data. It is the average of several 3075100200069 individual determinations 3075100200070 DECAY-DATA Used in decay corrections to obtain fission yields. 3075100200071 The nuclides having gamma-ray information were those 3075100200072 measured by this method. 3075100200073 ((1.)35-BR-85,3.03MIN) Precursor, 3075100200074 ((1.)36-KR-85-M,4.48HR,DG,151.18,0.76) 3075100200075 ((2.)35-BR-87,0.927MIN) Precursor, 3075100200076 ((2.)36-KR-87,76.3MIN,DG,402.578,0.492) 3075100200077 ((3.)35-BR-88,16.72SEC) Precursor, 3075100200078 ((3.)36-KR-88,2.84HR,DG,196.320,0.263) 3075100200079 ((4.)36-KR-89,3.18MIN) Precursor, 3075100200080 ((4.)37-RB-89,15.6MIN,DG,1031.9,0.585) 3075100200081 ((5.)37-RB-91,0.970MIN) Precursor, 3075100200082 ((5.)38-SR-91,570.MIN,DG,1024.3,0.33) 3075100200083 ((6.)37-RB-92,4.542SEC) Precursor, 3075100200084 ((6.)38-SR-92,2.71HR,DG,1383.94,0.90) 3075100200085 ((7.)38-SR-93,8.221MIN) Precursor, 3075100200086 ((7.)39-Y-93-G,615.MIN,DG,266.9,0.0682) 3075100200087 ((8.)38-SR-94,78.SEC) Precursor, 3075100200088 ((8.)39-Y-94,19.1MIN,DG,918.24,0.464) 3075100200089 ((9.)39-Y-95,10.81MIN) PRECURSOR, 3075100200090 ((9.)40-ZR-95,64.0D,DG,724.18,0.442, 3075100200091 DG,756.72,0.544) 3075100200092 ((10.)40-ZR-97,1014.MIN) Precursor 3075100200093 ((10.)41-NB-97-G,72.MIN,DG,657.92,0.982) 3075100200094 ((11.)41-NB-99-M,2.43MIN) Precursor, 3075100200095 ((11.)42-MO-99,66.02HR,DG,140.508,0.899, 3075100200096 DG,181.07,0.061, 3075100200097 DG,739.5,0.124) 3075100200098 ((12.)42-MO-101,14.62MIN) Precursor, 3075100200099 ((12.)43-TC-101,14.2MIN,DG,306.86,0.889) 3075100200100 ((13.)43-TC-103,50.2SEC) Precursor, 3075100200101 ((13.)44-RU-103,39.35D,DG,497.08,0.860) 3075100200102 ((14.)42-MO-104,1.1MIN) Precursor, 3075100200103 ((14.)43-TC-104,18.MIN,DG,357.8,0.844) 3075100200104 ((15.)43-TC-105,7.61MIN) Precursor, 3075100200105 ((15.)44-RU-105,4.44HR,DG,469.37,0.176, 3075100200106 DG,676.36,0.157, 3075100200107 DG,724.21,0.475) 3075100200108 ((16.)44-RU-107,4.2MIN) Precursor, 3075100200109 ((16.)45-RH-107,21.7MIN,DG,302.8,0.67) 3075100200110 ((17.)50-SN-127-G,126.MIN) Precursor, 3075100200111 ((17.)51-SB-127,5630.4MIN,DG,473.0,0.2531) 3075100200112 ((18.)49-IN-128-G,0.02MIN) Precursor, 3075100200113 ((18.)50-SN-128-G,59.35MIN,DG,482.3,0.582) 3075100200114 ((19.)50-SN-129-M,7.5MIN) Precursor, 3075100200115 ((19.)51-SB-129-G,4.411HR,DG,812.8,0.465) 3075100200116 ((20.)52-TE-131-M,30.HR) Precursor, 3075100200117 ((20.)53-I-131,8.040D,DG,364.48,0.81) 3075100200118 ((21.)51-SB-132-G,4.21MIN) Precursor, 3075100200119 ((21.)52-TE-132,78.2HR,DG,228.16,0.885) 3075100200120 ((22.)52-TE-133-M,55.44MIN) Precursor, 3075100200121 ((22.)53-I-133-G,20.8HR,DG,529.872,0.862) 3075100200122 ((23.)52-TE-134,41.8MIN) Precursor, 3075100200123 ((23.)53-I-134-G,52.6MIN,DG,847.025,0.954) 3075100200124 ((24.)53-I-135,6.61HR) Precursor, 3075100200125 ((24.)54-XE-135-G,9.09HR,DG,249.794,0.903) 3075100200126 ((25.)53-I-138,6.52SEC) Precursor, 3075100200127 ((25.)54-XE-138,14.177MIN) Precursor, 3075100200128 ((25.)55-CS-138-G,32.2MIN,DG,462.79,0.307, 3075100200129 DG,1435.86,0.763) 3075100200130 ((26.)55-CS-139,9.531MIN) Precursor, 3075100200131 ((26.)56-BA-139,83.0MIN,DG,165.853,0.2376) 3075100200132 ((27.)55-CS-140,65.57SEC) Precursor, 3075100200133 ((27.)56-BA-140,12.746D,DG,162.650,0.0621, 3075100200134 DG,537.26,0.2439) 3075100200135 ((28.)55-CS-141,0.415MIN) Precursor, 3075100200136 ((28.)56-BA-141,18.277MIN,DG,190.22,0.463) 3075100200137 ((29.)56-BA-142,10.7MIN) Precursor, 3075100200138 ((29.)57-LA-142,92.4MIN,DG,641.17,0.489) 3075100200139 ((30.)57-LA-143,14.01MIN) Precursor, 3075100200140 ((30.)58-CE-143,33.0HR,DG,293.262,0.42) 3075100200141 ((31.)58-CE-146,13.96MIN) Precursor, 3075100200142 ((31.)59-PR-146,24.01MIN,DG,453.8,0.483) 3075100200143 ((32.)59-PR-147,13.65MIN) Precursor 3075100200144 ((32.)60-ND-147,11.0D,DG,91.105,0.279) 3075100200145 ((33.)60-ND-151,12.447MIN) Precursor, 3075100200146 ((33.)61-PM-151,28.40HR,DG,340.08,0.22) 3075100200147 STATUS (TABLE) Fission yields (DATA + DATA-ERR) were taken 3075100200148 from Table 2, 3075100200149 relative errors from Table 3, 3075100200150 decay data for A=87,89,91,93,97,127,128,141 and 146 3075100200151 from Table 1 of the main reference. 3075100200152 Decay data for all other mass chains from Table 2 of 3075100200153 Chinese J.Nucl.Phys. 5(1983)227 (See Exfor30691). 3075100200154 HISTORY (19890313A) VOF.-Correction in decay-data code 3075100200155 (20090725A) SD:Updated to new date formats,lower case. 3075100200156 (20160624U) VS. DECAY-DATA corrected (Memo CP-D/888). 3075100200157 ENDBIB 155 0 3075100200158 NOCOMMON 0 0 3075100200159 DATA 12 33 3075100200160 MASS DATA DATA-ERR ERR-S ERR-1 ERR-2 3075100200161 ERR-3 ERR-4 ERR-5 ERR-6 ERR-T DECAY-FLAG 3075100200162 NO-DIM PC/FIS PC/FIS PER-CENT PER-CENT PER-CENT 3075100200163 PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT NO-DIM 3075100200164 85. 0.79 0.05 0.58 1.50 4.2 3075100200165 1.66 3.0 5.66 1. 3075100200166 87. 1.80 0.06 0.86 1.58 2.4 3075100200167 0.12 0.66 1.0 3.23 2. 3075100200168 88. 2.08 0.11 0.88 1.50 4.2 3075100200169 0.35 1.39 1.0 4.87 3. 3075100200170 89. 2.77 0.09 0.38 1.82 2.4 3075100200171 0.7 1.40 0.64 1.0 3.62 4. 3075100200172 91. 4.14 0.13 0.48 1.50 2.4 3075100200173 0.64 1.0 3.11 5. 3075100200174 92. 4.20 0.13 0.61 1.50 2.4 3075100200175 0.64 2.97 6. 3075100200176 93. 5.41 0.22 1.19 1.50 2.4 3075100200177 0.49 0.84 1.0 3.37 7. 3075100200178 94. 4.29 0.15 0.64 1.73 2.4 3075100200179 0.6 0.28 0.65 1.0 3.32 8. 3075100200180 95. 5.42 0.16 0.66 1.50 2.4 3075100200181 0.65 2.98 9. 3075100200182 97. 5.73 0.18 0.22 1.50 2.4 3075100200183 0.65 1.0 3.08 10. 3075100200184 99. 6.23 0.20 0.32 1.50 2.4 3075100200185 0.75 0.65 1.0 3.18 11. 3075100200186 101. 6.13 0.20 0.16 1.82 2.4 3075100200187 0.7 0.73 1.0 3.33 12. 3075100200188 103. 6.01 0.18 0.39 1.50 2.4 3075100200189 0.65 2.93 13. 3075100200190 104. 3.74 0.13 0.23 1.79 2.4 3075100200191 0.6 0.26 0.66 1.0 3.28 14. 3075100200192 105. 3.71 0.12 0.88 1.50 2.4 3075100200193 0.66 1.0 3.20 15. 3075100200194 107. 1.83 0.07 1.68 1.66 2.4 3075100200195 0.5 0.73 1.0 3.62 16. 3075100200196 127. 0.56 0.02 1.76 1.50 2.4 3075100200197 0.79 0.66 1.0 3.63 17. 3075100200198 128. 0.70 0.03 1.55 1.66 2.4 3075100200199 0.66 1.0 3.51 18. 3075100200200 129. 1.32 0.05 1.62 1.50 2.4 3075100200201 1.14 0.65 1.0 3.65 19. 3075100200202 131. 3.29 0.11 1.24 1.50 2.4 3075100200203 0.67 3.16 20. 3075100200204 132. 5.13 0.24 0.12 1.50 4.2 3075100200205 1.14 4.6 21. 3075100200206 133. 7.21 0.22 0.37 1.50 2.4 3075100200207 0.12 0.65 2.93 22. 3075100200208 134. 6.55 0.23 0.21 1.66 2.4 3075100200209 1.28 0.65 3.26 23. 3075100200210 135. 6.75 0.34 0.40 1.50 4.2 3075100200211 0.96 1.0 4.69 24. 3075100200212 138. 5.87 0.16 0.54 1.73 2.4 3075100200213 0.63 3.07 25. 3075100200214 139. 4.89 0.30 2.05 1.58 4.2 3075100200215 1.66 3.0 6.01 26. 3075100200216 140. 5.71 0.17 0.35 1.50 2.4 3075100200217 0.66 1.0 3.09 27. 3075100200218 141. 4.68 0.24 1.07 1.80 4.2 3075100200219 0.6 1.37 1.39 1.0 5.21 28. 3075100200220 142. 4.21 0.15 0.88 1.50 2.4 3075100200221 0.92 0.65 1.0 3.32 29. 3075100200222 143. 4.66 0.14 0.15 1.50 2.4 3075100200223 0.82 2.95 30. 3075100200224 146. 3.62 0.15 1.17 1.82 2.4 3075100200225 1.01 0.66 1.0 3.59 31. 3075100200226 147. 2.70 0.13 3.71 1.50 2.4 3075100200227 0.66 4.71 32. 3075100200228 151. 0.707 0.024 1.05 1.50 2.4 3075100200229 0.80 1.0 3.28 33. 3075100200230 ENDDATA 70 0 3075100200231 ENDSUBENT 230 0 3075100299999 SUBENT 30751003 20090908 20100105 3075100300001 BIB 9 43 3075100300002 REACTION (92-U-238(N,F)51-SB-130-G,CUM,FY) 3075100300003 METHOD (FPGAM) Direct gamma-ray spectroscopy of unseparated 3075100300004 fission products 3075100300005 Irradiation: 30 mins to 2 hrs 3075100300006 Measurement:repeated, following 2-4 half-lives 3075100300007 duration: 15 mins for each spectrum recorded 3075100300008 SAMPLE Weight: 0.6-1.5 grams 3075100300009 DETECTOR (GELI) 130 cm3 coaxial Ge(Li) detector 3075100300010 resolution: 1.85 keV (fwhm) at 1332.5 keV 3075100300011 Scorpio-3000 multichannel analysis computer system 3075100300012 Detector efficiency calibration by 4-Pi beta-gamma 3075100300013 coincidence technique using the following sources: 3075100300014 Am-241,Nd-147,Ce-144,Ce-141,Mo-99,Ag-111,Na-22, 3075100300015 Cs-137,Zr-95,Sc-46,Co-60 and Ta-182. 3075100300016 Uncertainty of efficiency curve: 2.4% 3075100300017 ANALYSIS Gamma-ray spectra were analysed and photo-peak areas 3075100300018 determined. 3075100300019 Standard equation for production and decay of fission 3075100300020 products including parent-daughter relationship was 3075100300021 used to deduce the cumulative fission yield 3075100300022 CORRECTION For: Gamma-ray self absorption in sample 3075100300023 Sum-peak from chance coincident cascade gammas 3075100300024 (no pile-up correction required) 3075100300025 ERR-ANALYS (DATA-ERR) Absolute total error (Table 2 of reference) 3075100300026 (ERR-S) Random error in peak area determination 3075100300027 (ERR-1) Error in fission rate determination 3075100300028 (ERR-2) Error of Ge(Li) detector efficiency 3075100300029 (ERR-3) Error of sum-peak correction 3075100300030 (ERR-4) Error of self-absorption correction 3075100300031 (ERR-5) Error in spectrum analysis (in the case of 3075100300032 complex spectra,especially for overlapping 3075100300033 gamma-ray peaks) 3075100300034 (ERR-T) Total relative error,including all individual 3075100300035 errors listed above,but excluding errors of the3075100300036 nuclear data. It is the average of several 3075100300037 individual determinations 3075100300038 DECAY-DATA (50-SN-130-M,1.71MIN) Precursor 3075100300039 (51-SB-130-G,40.95MIN,DG,330.9,0.78) 3075100300040 Reference: C.M.Lederer et al., Table of Isotopes (1978)3075100300041 STATUS (TABLE) Fission yield and DATA-ERR (absolute) were 3075100300042 taken from Table 2 of main reference, 3075100300043 relative errors from Table 3, 3075100300044 decay data from Table 1. 3075100300045 ENDBIB 43 0 3075100300046 NOCOMMON 0 0 3075100300047 DATA 9 1 3075100300048 DATA DATA-ERR ERR-S ERR-1 ERR-2 ERR-3 3075100300049 ERR-4 ERR-5 ERR-T 3075100300050 PC/FIS PC/FIS PER-CENT PER-CENT PER-CENT PER-CENT 3075100300051 PER-CENT PER-CENT PER-CENT 3075100300052 0.66 0.04 1.80 1.66 2.4 2.47 3075100300053 0.68 1.0 4.40 3075100300054 ENDDATA 6 0 3075100300055 ENDSUBENT 54 0 3075100399999 SUBENT 30751004 20090908 20100105 3075100400001 BIB 13 120 3075100400002 REACTION (92-U-238(N,F)MASS,CHN,FY) 3075100400003 METHOD (CHSEP) Radiochemical separation of fission products 3075100400004 which were then measured by beta- or gamma-ray 3075100400005 detection. 3075100400006 No information given on irradiation,cooling time and 3075100400007 duration of measurements (data accumulation). 3075100400008 Decay of fission products was followed 2-4 half lives. 3075100400009 Chain yields were derived from cumulative yields. 3075100400010 SAMPLE 32 Samples weighing 0.6-3 grams 3075100400011 DETECTOR Low background level (2-3 cpm) beta-detector FH-1914 3075100400012 (SCIN). FH-1906 (low background) for gamma-rays 3075100400013 Detector efficiency calibration standards with radiat- 3075100400014 ion energy and source thickness similar to the 3075100400015 measured samples were used. If this was not possible 3075100400016 corrections (see there) were applied. 3075100400017 ANALYSIS Activities of individual fission products were measured3075100400018 and standard equations for production and decay 3075100400019 including parent-daughter relationships were used to 3075100400020 obtain cumulative fission yields. 3075100400021 Relative measurements (using the 'internal calibration'3075100400022 method: see 'CORRECTION') were performed for: 3075100400023 Br-83,Br-84,Ru-103,Ru-106,Pd-109,Pd-112,Cd-115-g+m, 3075100400024 Sb-127,I-131 and Tb-161. 3075100400025 Isomeric yields: both isomers of Cd-115 were measured, 3075100400026 published isomeric yield ratios were used for Ag-113 3075100400027 and Sn-151. No information is given for other fission3075100400028 products having isomers (Br-84,Ag-111) 3075100400029 Chain yields were derived from cumulative yields by 3075100400030 correcting for the difference using published 3075100400031 empirical fractional yields. 3075100400032 ASSUMED Isomeric yield ratios r=(g+m)/g were taken as 3075100400033 r(Ag-113)=1.35+-0.14 r(Sn-121)=1.16+-0.11 3075100400034 from: S.Nagy et al, Phys.Rev. C17(1978)163. 3075100400035 CORRECTION For differences in thickness between calibration source3075100400036 and measured sample by using calibration curves 3075100400037 (compiler assumes: of absorption versus thickness) 3075100400038 For differences in radiation energy: the 'internal 3075100400039 calibration' method using radiations of different 3075100400040 energy from the same source or sample for relative 3075100400041 efficiency calibration. 3075100400042 Yields determined this way are regarded as relative 3075100400043 by the authors (assumed by the compiler) 3075100400044 Correction for the difference between total chain yield3075100400045 and measured cumulative yield: the data and semi- 3075100400046 empirical formula of D.R.Nethaway, UCRL-51640 (1978) 3075100400047 was used. 3075100400048 REL-REF (M,,D.R.Nethaway,R,UCRL-51640,1974) See 'CORRECTION' 3075100400049 (R,,S.Nagy+,J,PR/C,17,163,1978) 3075100400050 COMMENT by compiler: 3075100400051 1.)The main publication does not explicitly state the 3075100400052 connection between relative yields and 'internal 3075100400053 calibration' method, but the fission products listed3075100400054 are identical except for Eu-156. 3075100400055 2.)It is not mentioned, how the internal calibration is3075100400056 performed in beta-ray measurements. 3075100400057 3.)In the main reference it is mentioned that the decay3075100400058 data used in the analysis of data from the radio- 3075100400059 chemical method can be found in 3075100400060 He Huaxue, Yu Fangshe, Hua Xue (J.Nuclear and Radio-3075100400061 chemistry, China) 7(1985)1.( see Exfor30743) 3075100400062 However,in this publication no decay data are given,3075100400063 only the method (beta- or gamma-ray measurement) 3075100400064 used for the different fission products. 3075100400065 Therefore the compiler assumes that the method given3075100400066 there is also used in the present work. 3075100400067 For the decay data, those given for the direct 3075100400068 gamma-spectrometric method are used, if available. 3075100400069 DECAY-DATA ((1.)37-RB-91,0.970MIN) Precursor 3075100400070 ((1.)38-SR-91,570.MIN,DG,1024.3,0.33) 3075100400071 ((2.)39-Y-95,10.81MIN) Precursor 3075100400072 ((2.)40-ZR-95,64.0D,DG,724.18,0.442, 3075100400073 DG,756.72,0.544) 3075100400074 ((3.)40-ZR-97,16.9HR,DG,743.36,0.929) 3075100400075 ((4.)41-NB-99-M,2.43MIN) Precursor 3075100400076 ((4.)42-MO-99,66.02HR,DG,140.508,0.899, 3075100400077 DG,181.07,0.061, 3075100400078 DG,739.5,0.124) 3075100400079 ((5.)44-RU-103,39.35D,DG,497.08,0.860) 3075100400080 ((6.)44-RU-106,368.0D) no beta-ray information 3075100400081 ((7.)46-PD-109,13.46HR) no beta-ray information 3075100400082 ((8.)47-AG-111-G,7.45D) no beta-ray information 3075100400083 ((9.)46-PD-112,20.12HR) no beta-ray information 3075100400084 ((10.)47-AG-113-G,5.37HR) no beta-ray information 3075100400085 ((11.)48-CD-115-G,53.5HR) no beta-ray information 3075100400086 ((12.)50-SN-127-G,126.MIN) Precursor 3075100400087 ((12.)51-SB-127,5630.4MIN,DG,473.0,0.2531) 3075100400088 ((13.)52-TE-131-M,30.HR) Precursor 3075100400089 ((13.)53-I-131,8.040D,DG,364.48,0.81) 3075100400090 ((14.)51-SB-132-G,4.21MIN) Precursor 3075100400091 ((14.)52-TE-132,78.2HR,DG,228.16,0.885) 3075100400092 ((15.)56-BA-140,12.746D,DG,162.650,0.0621, 3075100400093 DG,537.26,0.2439) 3075100400094 ((16.)57-LA-141,3.905HR) Precursor 3075100400095 ((16.)58-CE-141,32.5D) no beta-ray information 3075100400096 ((17.)58-CE-144,284.4D) no beta-ray information 3075100400097 ((18.)59-PR-147,13.65MIN) Precursor 3075100400098 ((18.)60-ND-147,11.0D) no beta-ray information 3075100400099 ((19.)61-PM-153,5.33MIN) Precursor 3075100400100 ((19.)62-SM-153,46.7HR) no beta-ray information 3075100400101 no decay data information is given for Br-83,Br-84, 3075100400102 Sr-89,Cd-115-M,Sn-121,Eu-156 and Tb-161 3075100400103 ERR-ANALYS (DATA-ERR) Absolute total error (Table 2 of main ref.) 3075100400104 (ERR-S) Random error (counting statistics and average 3075100400105 of several measurements) 3075100400106 (ERR-1) Error of fission rate determination 3075100400107 (ERR-2) Error of detector efficiency 3075100400108 (ERR-3) Error of internal calibration (efficiency) 3075100400109 (ERR-T) Total relative error,excluding errors in the 3075100400110 nuclear data used. 3075100400111 FLAG (1.) Absolute measurement, gamma-rays detected 3075100400112 (2.) Absolute measurement, beta-rays detected 3075100400113 (3.) Relative measurement, gamma-rays detected 3075100400114 (4.) Relative measurement, beta-rays detected 3075100400115 (5.) Relative measurement, no information on radiation 3075100400116 STATUS (TABLE) Fission yields (DATA+DATA-ERR) from Table 2, 3075100400117 relative errors from Table 4, 3075100400118 decay data for A=91 and 127 from Table 1 of the main 3075100400119 reference. 3075100400120 Decay data for all other mass chains from Table 2 of 3075100400121 Chinese J.Nucl.Phys. 5(1983)227 (See exfor30691). 3075100400122 ENDBIB 120 0 3075100400123 COMMON 1 3 3075100400124 ERR-1 3075100400125 PER-CENT 3075100400126 1.5 3075100400127 ENDCOMMON 3 0 3075100400128 DATA 9 25 3075100400129 MASS DATA DATA-ERR ERR-S ERR-2 ERR-3 3075100400130 ERR-T DECAY-FLAG FLAG 3075100400131 NO-DIM PC/FIS PC/FIS PER-CENT PER-CENT PER-CENT 3075100400132 PER-CENT NO-DIM NO-DIM 3075100400133 83. 0.51 0.04 4.7 3.0 1.4 3075100400134 7.0 5. 3075100400135 84. 0.98 0.06 5.0 2.0 1.4 3075100400136 5.8 5. 3075100400137 89. 3.33 0.10 1.5 2.0 3075100400138 2.9 2. 3075100400139 91. 4.54 0.16 2.5 2.1 3075100400140 3.6 1. 1. 3075100400141 95. 5.68 0.16 1.3 2.1 3075100400142 2.9 2. 1. 3075100400143 97. 6.01 0.21 1.1 3.0 3075100400144 3.5 3. 1. 3075100400145 99. 6.22 0.19 1.7 2.0 3075100400146 3.0 4. 1. 3075100400147 103. 5.19 0.34 5.5 1.4 1.4 3075100400148 6.5 5. 3. 3075100400149 106. 2.68 0.18 5.8 3.0 1.4 3075100400150 6.8 6. 4. 3075100400151 109. 0.523 0.028 4.3 3.0 1.4 3075100400152 5.5 7. 4. 3075100400153 111. 0.346 0.030 7.9 3.0 3075100400154 8.6 8. 2. 3075100400155 112. 0.257 0.011 3.2 2.0 1.4 3075100400156 4.3 9. 4. 3075100400157 113. 0.25 0.01 5.6 3.0 3075100400158 6.5 10. 2. 3075100400159 115. 0.227 0.009 2.8 1.5 1.4 3075100400160 3.9 11. 4. 3075100400161 121. 0.263 0.025 3.9 5.0 3075100400162 9.5 2. 3075100400163 127. 0.728 0.027 2.4 2.0 1.4 3075100400164 3.7 12. 3. 3075100400165 131. 3.16 0.10 1.8 1.6 1.4 3075100400166 3.2 13. 3. 3075100400167 132. 4.61 0.12 1.6 1.5 3075100400168 2.7 14. 1. 3075100400169 140. 5.64 0.16 1.4 2.0 3075100400170 2.9 15. 1. 3075100400171 141. 5.49 0.16 1.6 2.0 3075100400172 3.0 16. 2. 3075100400173 144. 4.06 0.12 1.5 2.0 3075100400174 2.9 17. 2. 3075100400175 147. 2.58 0.07 1.1 2.0 3075100400176 2.7 18. 2. 3075100400177 153. 0.434 0.013 1.4 2.0 3075100400178 2.9 19. 2. 3075100400179 156. 0.0905 0.0066 6.1 2.0 1.4 3075100400180 7.3 2. 3075100400181 161. 0.0040 0.0003 5.2 3.0 1.4 3075100400182 6.3 4. 3075100400183 ENDDATA 54 0 3075100400184 ENDSUBENT 183 0 3075100499999 SUBENT 30751005 20090908 20100105 3075100500001 BIB 9 28 3075100500002 REACTION (92-U-238(N,F)50-SN-125-G,CUM,FY) 3075100500003 METHOD (CHSEP) Radiochemical separation of fission products, 3075100500004 beta-ray measurement 3075100500005 No information given on times for irradiation,cooling 3075100500006 and measurement 3075100500007 The decay was followed for 2-4 half-lives 3075100500008 SAMPLE Weight: 0.6-3 grams 3075100500009 DETECTOR Low background level (2-3 cpm) beta detector FH-1914 3075100500010 calibrated using sources of the same dimensions as the 3075100500011 sample and emitting beta-rays of similar energy. 3075100500012 No further details given. 3075100500013 CORRECTION No information 3075100500014 DECAY-DATA No information 3075100500015 ERR-ANALYS (ERR-S) Random error (counting statistics,averaging of 3075100500016 several determinations) 3075100500017 (ERR-1) Error of fission rate determination 3075100500018 (ERR-2) Error of detector efficiency 3075100500019 (ERR-T) Total relative error,including only errors 3075100500020 given above. 3075100500021 COMMENT Partial cumulative yield of 1 isomer (presumably the 3075100500022 ground state) 3075100500023 By compiler: The information given is insufficient. 3075100500024 It was assumed from a previous publication (see 3075100500025 Exfor30743) cited in the main reference (as ref.No.7), 3075100500026 that the method applied here was also beta-ray 3075100500027 detection. 3075100500028 STATUS (TABLE) DATA and DATA-ERR from Table 2, 3075100500029 relative errors from Table 4 of the main reference 3075100500030 ENDBIB 28 0 3075100500031 NOCOMMON 0 0 3075100500032 DATA 6 1 3075100500033 DATA DATA-ERR ERR-S ERR-1 ERR-2 ERR-T 3075100500034 PC/FIS PC/FIS PER-CENT PER-CENT PER-CENT PER-CENT 3075100500035 0.076 0.003 2.8 1.5 2.0 3.8 3075100500036 ENDDATA 3 0 3075100500037 ENDSUBENT 36 0 3075100599999 ENDENTRY 5 0 3075199999999