ENTRY 10865 20201028 14741086500000001 SUBENT 10865001 20201028 14741086500100001 BIB 12 33 1086500100002 TITLE Absolute thermal fission yields for U-235 1086500100003 AUTHOR (W.J.Maeck,W.A.Emel,F.A.Duce,R.L.Tromp,J.W.Meteer) 1086500100004 REFERENCE (R,ICP-1142,1978) 1086500100005 INSTITUTE (1USAINL) 1086500100006 FACILITY (REAC,1USAINL) Engineering test reactor (ETR). 1086500100007 INC-SPECT Thermal reactor spectrum. 1086500100008 SAMPLE (92-U-235,ENR=0.99735) U-235 in form of U(3)O(8): 1086500100009 mean abundance U-235 is 99.735%. Samples 1086500100010 enclosed in high-purity aluminum. 1086500100011 METHOD (ASEP) Amounts of non-gaseous fission products 1086500100012 determined using isotope dilution mass spectrometry. 1086500100013 MONITOR Number of fissions determined by summation method for 1086500100014 low atom percent fission, and by summation and 1086500100015 difference methods for high atom percent fission. 1086500100016 ERR-ANALYS (DATA-ERR) Standard deviation obtained by 1086500100017 approximating functions used to calculate yields, 1086500100018 approximating linear terms of Taylor expansion, and 1086500100019 applying standard methods for calculating errors 1086500100020 for a linear sum of random variables. Relative 1086500100021 uncertainty in net sample content approx. 0.2%. 1086500100022 Uncertainty in absolute fission yields caused by 1086500100023 relative error of 0.5% in determination of the number 1086500100024 of fissions. 1086500100025 STATUS (APRVD) Approved by W.J.Maeck, 1980/2/28. 1086500100026 HISTORY (19791116C) 1086500100027 (19800820U) BIB correction. 1086500100028 (19801029U) BIB correction. 1086500100029 (19840917A) BIB correction. 1086500100030 (19891212A) BIB corrections. 1086500100031 (20180411A) BP: updated to new date formats,lower 1086500100032 case. corrections according last EXFOR rules and dict. 1086500100033 (20201028A) BP: Corrected 135,136 mass yields in 1086500100034 Sub.2. Added subentry 3. 1086500100035 ENDBIB 33 0 1086500100036 COMMON 1 3 1086500100037 EN-DUMMY 1086500100038 EV 1086500100039 0.0253 1086500100040 ENDCOMMON 3 0 1086500100041 ENDSUBENT 40 0 1086500199999 SUBENT 10865002 20201028 14741086500200001 BIB 4 10 1086500200002 REACTION (92-U-235(N,F)MASS,CHN,FY,,SPA) 1086500200003 ANALYSIS Data averaged over three similarly prepared samples. 1086500200004 STATUS (TABLE) Table XII of ICP-1142. 1086500200005 HISTORY (19801029A) Reaction, data corrections. 1086500200006 (20180411A) BP: Changed method to analysis, status 1086500200007 added. 1086500200008 (20201028A) BP: Removed mass 135,136 yields that were 1086500200009 not separated and published as a sum; 1086500200010 compiled in subentry 10898002 as individual 1086500200011 yields. 1086500200012 ENDBIB 10 0 1086500200013 NOCOMMON 0 0 1086500200014 DATA 3 39 1086500200015 MASS DATA DATA-ERR 1086500200016 NO-DIM PC/FIS PC/FIS 1086500200017 83. 0.543 0.004 1086500200018 84. 1.016 0.007 1086500200019 85. 1.333 0.007 1086500200020 86. 1.979 0.014 1086500200021 87. 2.586 0.014 1086500200022 88. 3.547 0.019 1086500200023 90. 5.714 0.032 1086500200024 91. 5.764 0.168 1086500200025 92. 5.828 0.138 1086500200026 93. 6.207 0.160 1086500200027 94. 6.221 0.148 1086500200028 95. 6.535 0.055 1086500200029 96. 6.030 0.146 1086500200030 97. 5.937 0.043 1086500200031 98. 5.827 0.043 1086500200032 100. 6.249 0.051 1086500200033 101. 5.244 0.051 1086500200034 102. 4.362 0.042 1086500200035 104. 1.902 0.019 1086500200036 106. 0.460 0.033 1086500200037 131. 2.914 0.018 1086500200038 132. 4.344 0.024 1086500200039 133. 6.685 0.036 1086500200040 134. 7.918 0.037 1086500200041 137. 6.234 0.037 1086500200042 138. 6.756 0.039 1086500200043 140. 6.102 0.056 1086500200044 142. 5.783 0.053 1086500200045 143. 6.006 0.034 1086500200046 144. 5.540 0.031 1086500200047 145. 3.960 0.021 1086500200048 146. 3.009 0.018 1086500200049 147. 2.223 0.022 1086500200050 148. 1.677 0.012 1086500200051 149. 1.032 0.010 1086500200052 150. 0.658 0.007 1086500200053 151. 0.399 0.017 1086500200054 152. 0.251 0.008 1086500200055 154. 0.076 0.003 1086500200056 ENDDATA 41 0 1086500200057 ENDSUBENT 56 0 1086500299999 SUBENT 10865003 20201028 14741086500300001 BIB 5 6 1086500300002 REACTION (92-U-235(N,F)MASS,CHN,FY,,SPA) 1086500300003 ANALYSIS Data averaged over three similarly prepared samples. 1086500300004 STATUS (TABLE) Table XII of ICP-1142. 1086500300005 COMMENT Compiler's comment: In the experiment masses 135 and 1086500300006 136 yields were not separated and published as a sum. 1086500300007 HISTORY (20201028A) BP 1086500300008 ENDBIB 6 0 1086500300009 NOCOMMON 0 0 1086500300010 DATA 4 1 1086500300011 MASS-MIN MASS-MAX DATA DATA-ERR 1086500300012 NO-DIM NO-DIM PC/FIS PC/FIS 1086500300013 135.0 136.0 12.847 0.065 1086500300014 ENDDATA 3 0 1086500300015 ENDSUBENT 14 0 1086500399999 ENDENTRY 3 0 1086599999999