ENTRY 10845 20180411 14401084500000001 SUBENT 10845001 20180411 14401084500100001 BIB 13 36 1084500100002 TITLE Fast reactor fission yields for Pu-240 and Pu-242 1084500100003 AUTHOR (W.J.Maeck,R.L.Eggleston,A.L.Erikson,R.L.Tromp) 1084500100004 REFERENCE (R,ICP-1050-IV,1979) 1084500100005 (C,77NBS,,146,1977) 1084500100006 INSTITUTE (1USAINL) 1084500100007 FACILITY (REAC,1USAINL) Experimental Breeder Reactor II, row 8. 1084500100008 SAMPLE Highly enriched oxide powders mixed with highly 1084500100009 enriched nickel, enclosed in nickel capsules. 1084500100010 DETECTOR Mass spectrometer used to measure fission products 1084500100011 (GELI) calibrated geli detector used for measurement 1084500100012 of non-fissionable spectrum monitors 1084500100013 MONITOR Wires of copper, iron, nickel, titanium and cobalt, 1084500100014 scandium powder, and oxides of Np-237, U-238, and 1084500100015 U-235.) 1084500100016 METHOD (ASEP) Samples chemically dissolved and analyzed 1084500100017 using isotope dilution mass spectrometry. Fissionable 1084500100018 spectrum monitors were individually dissolved and the 1084500100019 Cs-137 separated and counted using gamma-ray 1084500100020 analysis. Neutron spectra then characterized using 1084500100021 fitting code spectra. Total number of fissions 1084500100022 determined using summation technique. 1084500100023 CORRECTION Data corrected for fissions from other sources and 1084500100024 for the number of atoms produced by these sources. 1084500100025 ERR-ANALYS Errors include uncertainty in corrections. Allowances 1084500100026 made for known sources of systematic error 1084500100027 uncertainty in total number of fissions - 0.7 percent. 1084500100028 STATUS (APRVD) Approved by W. J. Maeck, 1980/3/10. 1084500100029 HISTORY (19800111C) 1084500100030 (19800820U) BIB correction. 1084500100031 (19801029A) Reactions and data corrected. 1084500100032 BIB corrections. 1084500100033 (19840917A) BIB corrections. 1084500100034 (19891121A) BIB corrections 1084500100035 (20180411A) BP: Updated to new date formats,lower case.1084500100036 Corrections according last EXFOR rules and Dict. 1084500100037 Deleted NODATA subs. 3, 5 1084500100038 ENDBIB 36 0 1084500100039 NOCOMMON 0 0 1084500100040 ENDSUBENT 39 0 1084500199999 SUBENT 10845002 20180411 14401084500200001 BIB 8 29 1084500200002 REACTION (94-PU-240(N,F)MASS,CHN,FY,,FST) 1084500200003 SAMPLE (94-PU-240,ENR=0.98426) Two samples were used, both 1084500200004 are 98.426- percent Pu-240: One sample located 12-cm 1084500200005 above reaction mid-plane,the other located 21-cm 1084500200006 above the reaction mid-plane. 1084500200007 INC-SPECT Spectral index U-238/U-235 is 0.017 for 12-cm reactor 1084500200008 position and 0.009 at 21-cm reactor position. 1084500200009 ANALYSIS Values obtained by interpolation and extrapolation 1084500200010 using measured mass data: 1084500200011 75-82 = 0.51+-0.11, 89 = 1.393+-0.106, 1084500200012 99 = 6.210+-0.363, 103 = 6.929+-0.616 1084500200013 105 = 6.192+-0.564, 107 = 3.31+-0.97 1084500200014 108 = 2.06+-0.61, 109 = 1.21+-0.36 1084500200015 110 = 0.69+-0.22, 111 = 0.37+-0.11 1084500200016 112 = 0.16+-0.05, 113 = 0.09+-0.02 1084500200017 114-119 =0.22+- 0.12, 120-124 =0.19+- 0.11 1084500200018 126 = 0.19+-0.04, 127 = 0.40+-0.09 1084500200019 128 = 0.74+-0.14, 129 = 1.25+-0.21 1084500200020 130 = 2.07+-0.35, 141 = 5.222+-0.287 1084500200021 153 = 0.476+-0.054, 155-160 = 0.50+-0.116 1084500200022 COMMENT Complete recovery from one capsule was unobtainable. 1084500200023 Values from second capsule were substituted for the 1084500200024 missing masses. Results for both samples were 1084500200025 combined to get one value. 1084500200026 ERR-ANALYS (DATA-ERR) Errors include uncertainty due to 1084500200027 substitution of yield values 1084500200028 STATUS (TABLE) Table VIII, ICP-1050-IV 1084500200029 HISTORY (19801029A) Reactions and data corrected. 1084500200030 (20180411A) REACTION SF8 changed to FST, STATUS added 1084500200031 ENDBIB 29 0 1084500200032 COMMON 1 3 1084500200033 EN-DUMMY 1084500200034 KEV 1084500200035 400. 1084500200036 ENDCOMMON 3 0 1084500200037 DATA 3 43 1084500200038 MASS DATA DATA-ERR 1084500200039 NO-DIM PC/FIS PC/FIS 1084500200040 83. 0.227 0.002 1084500200041 84. 0.390 0.004 1084500200042 85. 0.437 0.009 1084500200043 86. 0.630 0.006 1084500200044 87. 0.863 0.019 1084500200045 88. 0.979 0.023 1084500200046 90. 1.807 0.030 1084500200047 91. 2.199 0.029 1084500200048 92. 2.694 0.034 1084500200049 93. 3.525 0.046 1084500200050 94. 3.954 0.048 1084500200051 95. 4.470 0.068 1084500200052 96. 4.760 0.060 1084500200053 97. 5.205 0.076 1084500200054 98. 5.541 0.092 1084500200055 100. 6.880 0.103 1084500200056 101. 6.617 0.249 1084500200057 102. 6.822 0.257 1084500200058 104. 7.031 0.265 1084500200059 106. 5.346 0.275 1084500200060 125. 0.089 0.011 1084500200061 131. 3.418 0.035 1084500200062 132. 4.633 0.045 1084500200063 133. 6.969 0.061 1084500200064 134. 7.150 0.067 1084500200065 135. 7.638 0.062 1084500200066 136. 6.585 0.066 1084500200067 137. 6.787 0.064 1084500200068 138. 6.429 0.113 1084500200069 139. 5.985 0.316 1084500200070 140. 5.570 0.095 1084500200071 142. 4.874 0.084 1084500200072 143. 4.651 0.057 1084500200073 144. 4.074 0.049 1084500200074 145. 3.203 0.038 1084500200075 146. 2.622 0.031 1084500200076 147. 2.196 0.043 1084500200077 148. 1.820 0.024 1084500200078 149. 1.343 0.018 1084500200079 150. 1.094 0.016 1084500200080 151. 0.849 0.011 1084500200081 152. 0.646 0.014 1084500200082 154. 0.306 0.009 1084500200083 ENDDATA 45 0 1084500200084 ENDSUBENT 83 0 1084500299999 NOSUBENT 10845003 20180727 14401084500300001 SUBENT 10845004 20180411 14401084500400001 BIB 7 25 1084500400002 REACTION (94-PU-242(N,F)MASS,CHN,FY,,FST) 1084500400003 SAMPLE (94-PU-242,ENR=0.99189) 99.189-Percent Pu-242: One 1084500400004 sample located 23-cm above reactor plane, the other 1084500400005 was located 15-cm above the reactor plane. 1084500400006 INC-SPECT Spectral index U-238/U-235 is 0.014 sample at 23 cm 1084500400007 position and 0.015 sample at 15 cm position. 1084500400008 ANALYSIS Values obtained by interpolation and extrapolation 1084500400009 using measured mass data: 1084500400010 75-82 = 0.44+-0.09, 89 = 1.099+-0.081 1084500400011 99 = 5.471+-0.296, 103 = 6.659+-0.614 1084500400012 105 = 6.324+-0.587, 107 = 5.10+-1.31 1084500400013 108 = 4.57+-1.16, 109 = 3.19+-0.82 1084500400014 110 = 2.01+-0.51, 111 = 1.19+-0.30 1084500400015 112 = 0.67+-0.17, 113 = 0.33+-0.08 1084500400016 114 = 0.12+-0.03, 115-120 = 0.20+-0.10 1084500400017 121-124 = 0.14+-0.08, 126 = 0.13+-0.03 1084500400018 127 = 0.28+-0.06, 128 = 0.56+-0.10 1084500400019 129 = 1.06+-0.17, 130 = 1.83+-0.29 1084500400020 141 = 5.098+-0.263, 153 = 0.600+-0.062 1084500400021 155-160 = 0.87+-0.18 1084500400022 ERR-ANALYS (DATA-ERR) Errors include uncertainty due to 1084500400023 substitution of yield values 1084500400024 STATUS (TABLE) Table XIII, ICP-1050-IV 1084500400025 HISTORY (19801029A) Reactions and data corrected. 1084500400026 (20180411A) REACTION SF8 changed to FST, STATUS added 1084500400027 ENDBIB 25 0 1084500400028 COMMON 1 3 1084500400029 EN-DUMMY 1084500400030 KEV 1084500400031 400. 1084500400032 ENDCOMMON 3 0 1084500400033 DATA 3 43 1084500400034 MASS DATA DATA-ERR 1084500400035 NO-DIM PC/FIS PC/FIS 1084500400036 83. 0.179 0.001 1084500400037 84. 0.344 0.002 1084500400038 85. 0.323 0.005 1084500400039 86. 0.542 0.004 1084500400040 87. 0.623 0.011 1084500400041 88. 0.836 0.007 1084500400042 90. 1.362 0.012 1084500400043 91. 1.807 0.048 1084500400044 92. 2.178 0.056 1084500400045 93. 2.819 0.072 1084500400046 94. 3.134 0.081 1084500400047 95. 3.631 0.036 1084500400048 96. 4.292 0.110 1084500400049 97. 4.450 0.041 1084500400050 98. 4.842 0.043 1084500400051 100. 6.099 0.059 1084500400052 101. 6.028 0.335 1084500400053 102. 6.476 0.360 1084500400054 104. 6.844 0.378 1084500400055 106. 5.806 0.328 1084500400056 125. 0.055 0.006 1084500400057 131. 3.089 0.024 1084500400058 132. 4.493 0.035 1084500400059 133. 6.827 0.046 1084500400060 134. 7.504 0.051 1084500400061 135. 6.982 0.043 1084500400062 136. 6.921 0.051 1084500400063 137. 6.340 0.044 1084500400064 138. 6.219 0.069 1084500400065 139. 6.067 0.124 1084500400066 140. 5.560 0.068 1084500400067 142. 4.637 0.057 1084500400068 143. 4.598 0.032 1084500400069 144. 4.285 0.028 1084500400070 145. 3.407 0.022 1084500400071 146. 2.922 0.019 1084500400072 147. 2.380 0.017 1084500400073 148. 2.018 0.016 1084500400074 149. 1.602 0.010 1084500400075 150. 1.328 0.013 1084500400076 151. 0.997 0.007 1084500400077 152. 0.770 0.006 1084500400078 154. 0.430 0.004 1084500400079 ENDDATA 45 0 1084500400080 ENDSUBENT 79 0 1084500499999 NOSUBENT 10845005 20180727 14401084500500001 ENDENTRY 5 0 1084599999999