ENTRY 23595 20210319 22992359500000001 SUBENT 23595001 20210319 22992359500100001 BIB 12 54 2359500100002 TITLE Fission fragment configurations at the scission point 2359500100003 of 233U, 235U and 239Pu(nth,f) 2359500100004 AUTHOR (K.Takamiya,T.Inoue,K.Nakanishi,A.Yokoyama,N.Takahashi,2359500100005 T.Saito,H.Baba,Y.Nakagome) 2359500100006 REFERENCE (J,JRN,239,117,1999) 2359500100007 INSTITUTE (2JPNKTO,2JPNOSA) 2359500100008 FACILITY (REAC,2JPNKTO) Super-mirror neutron-guide-tube of Kyoto2359500100009 University reactor. 2359500100010 INC-SOURCE (REAC) 2359500100011 INC-SPECT Thermal neutrons. Flux 6.E+7 n/sec. 2359500100012 SAMPLE Prepared by electrodeposition om 0.1 um thick Ni foil.2359500100013 U-233 thickness 100 ug/cm2, isotopic content 99.54 %. 2359500100014 U-235 thickness 80 ug/cm2, isotopic content 99.91 %. 2359500100015 Pu-239 thickness 11 ug/cm2, isotopic content 92. %. 2359500100016 DETECTOR (SOLST,SIBAR) Thin plastic scintillators ( NE102A, 2359500100017 25 ug/cm2 thickness, sandwiched with 2 lucite half 2359500100018 cylinders, equipped by sets of photomultipliers 2359500100019 Hamamatsu Photonics R329-02) as start detectors, 2359500100020 silicon surface barrier detectors ( 900 mm2 ORTEC 900F,2359500100021 covered with teflon ring of 30mm internal and 36 mm 2359500100022 external diameters) as stop detectors 2359500100023 - to measure velocities and energies of fission 2359500100024 fragments. 2359500100025 The distance between the start and stop detectors was 2359500100026 70 cm for either counter telescope. 2359500100027 METHOD (TOF) Double-velocity and double-energy measurement. 2359500100028 Number of events about 18000 in 140 hr for U-233, 2359500100029 16000 in 110 hr for U-235, 2359500100030 8500 in 140 hr for Pu-299. 2359500100031 ADD-RES Type-I - deformed both light and heavy fragments, 2359500100032 Type-II - deformed light fragment and spherical heavy 2359500100033 fragment. 2359500100034 . Table 1 - population of configuration grout for 2359500100035 two types: 2359500100036 U-233 U-235 Pu-239 2359500100037 Type-I 58.9% 64.1% 59.7% 2359500100038 Type-II 41.1% 35.9% 40.3% 2359500100039 . Table 2 - mass A and TKE distributions parameters 2359500100040 (first moment): 2359500100041 A TKE,MeV 2359500100042 U-233 type-I 141 164 2359500100043 type-II 139 173 2359500100044 U-235 type-I 142 167 2359500100045 type-II 135 177 2359500100046 standard II 141 167 2359500100047 standard I 134 187 2359500100048 Pu-239 type-I 143 165 2359500100049 type-II 134 177 2359500100050 standard II 140 175 2359500100051 standard I 134 192 2359500100052 Standard I and II - predicted values assuming that 2359500100053 the mass and total kinetic energy distributions of each2359500100054 fission channels are Gaussians. 2359500100055 HISTORY (20210319C) M.M. 2359500100056 ENDBIB 54 0 2359500100057 COMMON 1 3 2359500100058 EN-DUMMY 2359500100059 EV 2359500100060 0.0253 2359500100061 ENDCOMMON 3 0 2359500100062 ENDSUBENT 61 0 2359500199999 SUBENT 23595002 20210319 22992359500200001 BIB 3 6 2359500200002 REACTION (92-U-233(N,F)MASS,PRE,FY,,MXW) 2359500200003 ERR-ANALYS Quantization errors: 2359500200004 scale X - 0.14 amu , scale Y - 0.016 %/fis. 2359500200005 STATUS (CURVE) Fig.1 a of 2359500200006 Journal of Radioanalytical and Nuclear Chemistry, 2359500200007 v.239,p.117,1999. 2359500200008 ENDBIB 6 0 2359500200009 COMMON 2 3 2359500200010 MASS-ERR-D ERR-DIG 2359500200011 NO-DIM PC/FIS 2359500200012 0.13 0.020 2359500200013 ENDCOMMON 3 0 2359500200014 DATA 2 67 2359500200015 MASS DATA 2359500200016 NO-DIM PC/FIS 2359500200017 75. 0.145 2359500200018 77. 0.113 2359500200019 79. 0.113 2359500200020 80. 0.113 2359500200021 82. 0.145 2359500200022 83. 0.338 2359500200023 84. 0.852 2359500200024 85. 1.654 2359500200025 86. 2.617 2359500200026 87. 3.452 2359500200027 88. 4.223 2359500200028 89. 5.378 2359500200029 90. 5.635 2359500200030 91. 6.631 2359500200031 93. 6.727 2359500200032 95. 6.856 2359500200033 96. 6.374 2359500200034 97. 5.796 2359500200035 98. 5.411 2359500200036 99. 4.737 2359500200037 100. 4.448 2359500200038 101. 4.160 2359500200039 102. 3.100 2359500200040 103. 2.747 2359500200041 104. 2.041 2359500200042 105. 1.495 2359500200043 106. 0.950 2359500200044 107. 0.725 2359500200045 108. 0.501 2359500200046 109. 0.276 2359500200047 111. 0.180 2359500200048 113. 0.148 2359500200049 115. 0.180 2359500200050 117. 0.180 2359500200051 120. 0.181 2359500200052 123. 0.213 2359500200053 125. 0.374 2359500200054 126. 0.566 2359500200055 127. 0.727 2359500200056 128. 0.952 2359500200057 129. 1.530 2359500200058 130. 2.043 2359500200059 131. 2.782 2359500200060 132. 3.103 2359500200061 133. 4.194 2359500200062 134. 4.516 2359500200063 135. 4.805 2359500200064 136. 5.415 2359500200065 137. 5.800 2359500200066 138. 6.410 2359500200067 139. 6.827 2359500200068 141. 6.731 2359500200069 143. 6.635 2359500200070 144. 5.672 2359500200071 145. 5.415 2359500200072 146. 4.260 2359500200073 147. 3.489 2359500200074 148. 2.623 2359500200075 149. 1.724 2359500200076 150. 0.889 2359500200077 151. 0.376 2359500200078 152. 0.183 2359500200079 154. 0.119 2359500200080 155. 0.119 2359500200081 157. 0.087 2359500200082 159. 0.088 2359500200083 160. 0.088 2359500200084 ENDDATA 69 0 2359500200085 ENDSUBENT 84 0 2359500299999 SUBENT 23595003 20210319 22992359500300001 BIB 3 6 2359500300002 REACTION (92-U-233(N,F)MASS,PRE,KE,,MXW) 2359500300003 ERR-ANALYS Quantization errors: 2359500300004 scale X - 0.14 amu, scale Y - 0.097 MeV. 2359500300005 STATUS (CURVE) Fig.1 b of 2359500300006 Journal of Radioanalytical and Nuclear Chemistry, 2359500300007 v.239,p.117,1999. 2359500300008 ENDBIB 6 0 2359500300009 COMMON 2 3 2359500300010 MASS-ERR-D ERR-DIG 2359500300011 NO-DIM MEV 2359500300012 0.077 0.062 2359500300013 ENDCOMMON 3 0 2359500300014 DATA 2 39 2359500300015 MASS DATA 2359500300016 NO-DIM MEV 2359500300017 83.00 100.110 2359500300018 85.40 101.670 2359500300019 87.02 100.710 2359500300020 88.63 100.910 2359500300021 89.97 101.690 2359500300022 91.85 101.310 2359500300023 93.46 101.120 2359500300024 95.07 100.930 2359500300025 96.41 101.320 2359500300026 98.56 101.140 2359500300027 99.91 100.360 2359500300028 101.52 99.788 2359500300029 102.33 98.626 2359500300030 103.15 97.658 2359500300031 103.69 96.495 2359500300032 105.30 96.307 2359500300033 105.85 94.949 2359500300034 125.56 79.293 2359500300035 127.17 79.299 2359500300036 127.98 78.137 2359500300037 129.59 77.560 2359500300038 130.94 76.594 2359500300039 132.03 75.433 2359500300040 132.84 74.271 2359500300041 133.65 73.303 2359500300042 135.00 72.337 2359500300043 136.08 70.982 2359500300044 137.17 69.627 2359500300045 138.79 67.691 2359500300046 140.14 66.531 2359500300047 141.22 65.369 2359500300048 142.30 64.208 2359500300049 143.65 63.242 2359500300050 144.47 61.886 2359500300051 145.55 60.919 2359500300052 146.36 60.145 2359500300053 147.44 59.179 2359500300054 148.25 58.405 2359500300055 149.06 57.243 2359500300056 ENDDATA 41 0 2359500300057 ENDSUBENT 56 0 2359500399999 SUBENT 23595004 20210319 22992359500400001 BIB 3 6 2359500400002 REACTION (92-U-233(N,F)MASS,PRE,KE,LF+HF,MXW) 2359500400003 ERR-ANALYS Quantization errors: 2359500400004 scale X - 0.14 amu, scale Y - 0.056 MeV. 2359500400005 STATUS (CURVE) Fig.1 c of 2359500400006 Journal of Radioanalytical and Nuclear Chemistry, 2359500400007 v.239,p.117,1999. 2359500400008 ENDBIB 6 0 2359500400009 COMMON 2 3 2359500400010 MASS-ERR-D ERR-DIG 2359500400011 NO-DIM MEV 2359500400012 0.14 0.067 2359500400013 ENDCOMMON 3 0 2359500400014 DATA 2 56 2359500400015 MASS DATA 2359500400016 NO-DIM MEV 2359500400017 83. 155.53 2359500400018 84. 156.89 2359500400019 85. 159.37 2359500400020 86. 159.26 2359500400021 87. 160.90 2359500400022 88. 162.03 2359500400023 89. 164.17 2359500400024 90. 165.76 2359500400025 91. 166.38 2359500400026 92. 168.18 2359500400027 93. 168.02 2359500400028 94. 169.88 2359500400029 95. 170.73 2359500400030 96. 172.82 2359500400031 97. 172.93 2359500400032 98. 174.68 2359500400033 99. 175.81 2359500400034 100. 176.09 2359500400035 101. 177.28 2359500400036 102. 176.04 2359500400037 103. 175.53 2359500400038 104. 174.29 2359500400039 105. 175.92 2359500400040 106. 174.23 2359500400041 107. 175.64 2359500400042 108. 171.35 2359500400043 109. 163.38 2359500400044 110. 167.56 2359500400045 124. 167.56 2359500400046 125. 163.38 2359500400047 126. 171.35 2359500400048 127. 175.64 2359500400049 128. 174.23 2359500400050 129. 175.92 2359500400051 130. 174.29 2359500400052 131. 175.53 2359500400053 132. 176.04 2359500400054 133. 177.28 2359500400055 134. 176.09 2359500400056 135. 175.81 2359500400057 136. 174.68 2359500400058 137. 172.93 2359500400059 138. 172.82 2359500400060 139. 170.73 2359500400061 140. 169.88 2359500400062 141. 168.02 2359500400063 142. 168.18 2359500400064 143. 166.38 2359500400065 144. 165.76 2359500400066 145. 164.17 2359500400067 146. 162.03 2359500400068 147. 160.90 2359500400069 148. 159.26 2359500400070 149. 159.37 2359500400071 150. 156.89 2359500400072 151. 155.53 2359500400073 ENDDATA 58 0 2359500400074 ENDSUBENT 73 0 2359500499999 SUBENT 23595005 20210319 22992359500500001 BIB 3 6 2359500500002 REACTION (92-U-233(N,F)MASS,PR/FRG,NU,,MXW) 2359500500003 ERR-ANALYS Quantization errors: 2359500500004 scale X - 0.14 amu, scale Y - 0.0060 prt/fis. 2359500500005 STATUS (CURVE) Fig.1 d of 2359500500006 Journal of Radioanalytical and Nuclear Chemistry, 2359500500007 v.239,p.117,1999. 2359500500008 ENDBIB 6 0 2359500500009 COMMON 2 3 2359500500010 MASS-ERR-D ERR-DIG 2359500500011 NO-DIM PRT/FIS 2359500500012 0.078 0.0035 2359500500013 ENDCOMMON 3 0 2359500500014 DATA 2 59 2359500500015 MASS DATA 2359500500016 NO-DIM PRT/FIS 2359500500017 80.79 0.0203 2359500500018 82.94 0.0434 2359500500019 84.27 0.1114 2359500500020 85.87 0.1796 2359500500021 86.67 0.2363 2359500500022 88.00 0.3157 2359500500023 89.05 0.5419 2359500500024 90.10 0.6890 2359500500025 91.19 0.6214 2359500500026 92.23 0.8590 2359500500027 92.75 0.9608 2359500500028 94.09 1.0288 2359500500029 95.15 1.1308 2359500500030 96.49 1.1311 2359500500031 96.74 1.2667 2359500500032 98.36 1.2106 2359500500033 98.88 1.3802 2359500500034 99.93 1.5160 2359500500035 101.27 1.5841 2359500500036 102.06 1.6521 2359500500037 103.13 1.6975 2359500500038 104.16 2.0254 2359500500039 104.72 1.8560 2359500500040 106.07 1.7998 2359500500041 107.40 1.9244 2359500500042 108.10 2.7268 2359500500043 109.01 1.8796 2359500500044 109.94 0.9419 2359500500045 111.46 1.6654 2359500500046 111.79 1.1457 2359500500047 115.89 0.5478 2359500500048 117.03 0.0057 2359500500049 117.97 1.1358 2359500500050 119.95 0.2888 2359500500051 121.55 2.5716 2359500500052 121.59 0.0406 2359500500053 123.06 1.1821 2359500500054 123.70 0.3800 2359500500055 125.05 0.3351 2359500500056 126.00 1.2958 2359500500057 126.61 0.6744 2359500500058 127.97 0.5730 2359500500059 128.74 0.8783 2359500500060 130.10 0.7317 2359500500061 131.42 0.8902 2359500500062 132.71 1.2746 2359500500063 134.09 1.0376 2359500500064 134.84 1.4333 2359500500065 135.94 1.2640 2359500500066 136.99 1.3999 2359500500067 139.42 1.3213 2359500500068 139.66 1.5586 2359500500069 141.02 1.4120 2359500500070 141.79 1.6834 2359500500071 142.83 1.9661 2359500500072 143.89 2.0454 2359500500073 144.95 2.2152 2359500500074 145.95 2.8142 2359500500075 146.94 3.4359 2359500500076 ENDDATA 61 0 2359500500077 ENDSUBENT 76 0 2359500599999 ENDENTRY 5 0 2359599999999