ENTRY 22746 20200801 22902274600000001 SUBENT 22746001 20200801 22902274600100001 BIB 10 37 2274600100002 TITLE Prompt fission neutron emission in resonance fission 2274600100003 of Pu-239 and in spontaneous fission of Cf-252 2274600100004 AUTHOR (F.-J.Hambsch, N.Varapai, S.Zeinalov, S.Oberstedt, 2274600100005 O.Serot) 2274600100006 INSTITUTE (2ZZZGEL) Hambsch, Oberstedt 2274600100007 (2FR CAD) Varapai, Serot 2274600100008 (4ZZZDUB) Zeinalov 2274600100009 REFERENCE (C,2004SANTA,1,644,2004) Main Reference 2274600100010 (S,ISINN-12,371,2004) Pu-239 data on fig.12 - 2274600100011 these data presented in Subent 002. 2274600100012 FACILITY (LINAC,2ZZZGEL) Pulsed Geel Linear Accelerator - GELINA2274600100013 Repetition rate 100 Hz. 2274600100014 METHOD (TOF) Time-of-flight for Pu-239 measurement. 2274600100015 flight path 13 m 2274600100016 (PHD) Pulse height and drift time determination to 2274600100017 deduce the angle information. 2274600100018 (PSD) Pulse-shape analysis of digitized pulse shapes 2274600100019 from DEMON module. 2274600100020 PART-DET (FF,N) 2274600100021 DETECTOR (FISCH) Double Frisch-Gridded ionization chamber as 2274600100022 fission fragment detector. Used in flow mode 2274600100023 with P-10 gas mixture. 2274600100024 (SCIN) As neutron detector, DEMON modules were used 2274600100025 16 cm in diameter and 20 cm in length, having 4 litres2274600100026 volumes filled with BC501A liquid scintillator and 2274600100027 coupled to 130mm diameter XP512B photomultiplier. 2274600100028 Neutron registration efficiency was found to be 0.13. 2274600100029 Taking into account geometrical efficiency of experi- 2274600100030 mental arrangement, the overall neutron detection 2274600100031 efficiency amounts to 0.06. 2274600100032 ANALYSIS .For offline data analysis a special software package 2274600100033 was developed, which uses digital filter processing 2274600100034 technology. 2274600100035 HISTORY (20070726C) M.M./S.M. 2274600100036 (20100108A) S.M. Data for Cf-252 moved to ENTRY 22780 2274600100037 (20121229U) SD: INC-SOURCE moved to Subent 3. 2274600100038 (20200801U) SD: Ref. was added. 2274600100039 ENDBIB 37 0 2274600100040 NOCOMMON 0 0 2274600100041 ENDSUBENT 40 0 2274600199999 SUBENT 22746002 20100108 22202274600200001 BIB 3 3 2274600200002 REACTION (98-CF-252(0,F)MASS,CHN,FY) Mass yield distribution 2274600200003 STATUS (SPSDD,22780002) 2274600200004 HISTORY (20100108D) Moved to Subentry 22780002 2274600200005 ENDBIB 3 0 2274600200006 NOCOMMON 0 0 2274600200007 NODATA 0 0 2274600200008 ENDSUBENT 7 0 2274600299999 SUBENT 22746003 20121229 22342274600300001 BIB 5 13 2274600300002 REACTION (94-PU-239(N,F)MASS,CHN,FY,,AV) Mass yield distribu- 2274600300003 tion integrated over all measured incident neutron 2274600300004 energies. 2274600300005 SAMPLE .High intrinsic alpha-active Pu-239 sample (1MBq alpha-2274600300006 activity) 2274600300007 INC-SOURCE (PHOTO) White neutron source of IRMM. 2274600300008 STATUS (CURVE) Fig.6 of Main Reference, lower part 2274600300009 (solid curve) 2274600300010 ERR-ANALYS (ERR-DIG) Digitizing error of DATA 2274600300011 .Digitizing error of MASS is 0.1. But as mass values 2274600300012 under MASS heading in DATA section are rounded to the 2274600300013 nearest integer, mass digitizing error heading 2274600300014 is omitted 2274600300015 ENDBIB 13 0 2274600300016 COMMON 3 3 2274600300017 EN-MIN EN-MAX ERR-DIG 2274600300018 EV EV PC/FIS 2274600300019 0.3 100. 0.93E-02 2274600300020 ENDCOMMON 3 0 2274600300021 DATA 2 108 2274600300022 MASS DATA 2274600300023 NO-DIM PC/FIS 2274600300024 70. 0.123 2274600300025 71. 0.139 2274600300026 72. 0.169 2274600300027 73. 0.198 2274600300028 74. 0.241 2274600300029 75. 0.285 2274600300030 76. 0.314 2274600300031 77. 0.370 2274600300032 78. 0.426 2274600300033 79. 0.510 2274600300034 80. 0.593 2274600300035 81. 0.608 2274600300036 82. 0.756 2274600300037 83. 0.889 2274600300038 84. 1.00 2274600300039 85. 1.12 2274600300040 86. 1.29 2274600300041 87. 1.49 2274600300042 88. 1.66 2274600300043 89. 1.83 2274600300044 90. 2.01 2274600300045 91. 2.23 2274600300046 92. 2.44 2274600300047 93. 2.61 2274600300048 94. 2.87 2274600300049 95. 2.99 2274600300050 96. 3.19 2274600300051 97. 3.35 2274600300052 98. 3.56 2274600300053 99. 3.60 2274600300054 100. 3.69 2274600300055 101. 3.78 2274600300056 102. 3.84 2274600300057 103. 3.91 2274600300058 104. 3.96 2274600300059 105. 3.87 2274600300060 106. 3.79 2274600300061 107. 3.51 2274600300062 108. 3.40 2274600300063 109. 3.15 2274600300064 110. 2.85 2274600300065 111. 2.65 2274600300066 112. 2.23 2274600300067 113. 2.01 2274600300068 113. 1.94 2274600300069 114. 1.80 2274600300070 115. 1.69 2274600300071 116. 1.50 2274600300072 117. 1.33 2274600300073 118. 1.24 2274600300074 119. 1.19 2274600300075 120. 1.15 2274600300076 121. 1.14 2274600300077 122. 1.22 2274600300078 123. 1.38 2274600300079 124. 1.50 2274600300080 125. 1.70 2274600300081 126. 1.86 2274600300082 127. 2.00 2274600300083 128. 2.24 2274600300084 129. 2.62 2274600300085 130. 2.91 2274600300086 131. 3.07 2274600300087 132. 3.41 2274600300088 133. 3.49 2274600300089 134. 3.74 2274600300090 135. 3.85 2274600300091 136. 3.95 2274600300092 137. 3.91 2274600300093 138. 3.86 2274600300094 139. 3.79 2274600300095 140. 3.70 2274600300096 141. 3.61 2274600300097 142. 3.56 2274600300098 143. 3.42 2274600300099 144. 3.20 2274600300100 145. 2.98 2274600300101 146. 2.89 2274600300102 147. 2.60 2274600300103 148. 2.47 2274600300104 149. 2.29 2274600300105 150. 2.00 2274600300106 150. 1.82 2274600300107 152. 1.59 2274600300108 153. 1.49 2274600300109 154. 1.33 2274600300110 155. 1.15 2274600300111 156. 1.02 2274600300112 157. 0.893 2274600300113 158. 0.749 2274600300114 159. 0.607 2274600300115 160. 0.581 2274600300116 161. 0.480 2274600300117 162. 0.416 2274600300118 163. 0.353 2274600300119 164. 0.315 2274600300120 165. 0.265 2274600300121 166. 0.242 2274600300122 167. 0.192 2274600300123 168. 0.167 2274600300124 169. 0.157 2274600300125 170. 0.133 2274600300126 171. 0.124 2274600300127 172. 0.101 2274600300128 173. 0.776E-01 2274600300129 174. 0.666E-01 2274600300130 175. 0.699E-01 2274600300131 176. 0.594E-01 2274600300132 ENDDATA 110 0 2274600300133 ENDSUBENT 132 0 2274600399999 ENDENTRY 3 0 2274699999999