ENTRY 41497 20200315 41864149700000001 SUBENT 41497001 20200315 41864149700100001 BIB 15 90 4149700100002 TITLE Differential cross sections of U(n,xn) reaction at 4149700100003 14.3 MeV neutron energy. 4149700100004 AUTHOR (B.V.Devkin, M.G.Kobozev, A.A.Lychagin, S.P.Simakov, 4149700100005 V.A.Talalaev) 4149700100006 INSTITUTE (4RUSFEI) 4149700100007 REFERENCE (J,YK,,(2),12,1999) Main Reference. Graphs . 4149700100008 (R,INDC(CCP)-426,17,2001) Engl.transl. of YK,2,12,1999.4149700100009 (C,2004SANTA,1,67,2004) Data used for benchmarking. 4149700100010 Exp. details given. 4149700100011 First author S.Simakov. 4149700100012 REL-REF (M,,S.Simakov+,J,YK,,(3-4),93,1992) Exp.details, 4149700100013 measurement method, processing of data. 4149700100014 First author S.Simakov. 4149700100015 (M,,S.Simakov+,R,INDC(CCP)-351,1993) 4149700100016 Engl.transl.of YK,1992,3-4,93 . 4149700100017 (M,,S.Simakov+,R,INDC(CCP)-358,93,1992) The same as 4149700100018 J,YK,,(3-4),93. In Russian . 4149700100019 First author S.Simakov. 4149700100020 (R,,W.Manhart+,R,IAEA-410,158,1987) IAEA-TECDOC-410 4149700100021 FACILITY (CCW,4RUSFEI) Pulsed neutron generator KG-0.3. 4149700100022 INC-SOURCE (D-T) Short (2.5ns) pulse of neutrons was generated 4149700100023 through T(d,n) reaction. Bombarding of solid titanium- 4149700100024 tritium target(11.mm diameter,0.8mm thickness,on copper4149700100025 backing,thin still tube of 0.55 thick as holder) with 4149700100026 pulsed beam of 280.keV deuterons. 4149700100027 METHOD (TOF) Flight Base 215 cm. 4149700100028 Measurement of background due to neutron scattering by 4149700100029 walls and apparatus in experimental room was made 4149700100030 without the sample. 4149700100031 SAMPLE Uranium sample as hollow cylinder of 4.52cm external 4149700100032 and 3.98cm internal diameters, 4.87cm height. 4149700100033 Sample from depleted U-238(U-235 content 0.2%), 326.8g 4149700100034 weight, placed at 14cm distance from Ti-T target at 4149700100035 78 degrees angle to deuteron beam direction. 4149700100036 DETECTOR (SCIN) NE-218 liquid scintillator in a glass vial of 4149700100037 10cm diameter, 5cm thickness, viewed by XP-2041 4149700100038 photomultiplier. Time resolution 3 ns, neutron 4149700100039 detection threshold about 0.3 MeV, gamma-ray 4149700100040 suppression factor about 5. 4149700100041 Detector was placed in lead shielding of 10 cm 4149700100042 thickness inside massive shield from mixture of 4149700100043 paraffin and lithium hydride, and in front - iron and 4149700100044 copper cones. All assembly was moved at angles from 4149700100045 30 to 150 degrees in step 30 degrees. 4149700100046 Detector efficiency was determined by two exp.methods:4149700100047 1.Neutron spectrum of spontaneous Cf-252 fission was 4149700100048 measured, known for 0.1-10.MeV energy range with 3% 4149700100049 accuracy (REL-REF). 4149700100050 (IOCH) Fast-response fission ionization chamber with 4149700100051 layer of Cf-252 was used. 4149700100052 2. Second method - relative to cross-section for 4149700100053 neutron scattering by hydrogen, known with accuracy 4149700100054 less 1.% (MONIT-REF). 4149700100055 Stilbene crystal of 10mm diameter and 40mm high was 4149700100056 used as scatterer, was mounted on photocathode of 4149700100057 FEU-30 photomultiplier. 4149700100058 (LONGC) Long counter was used to monitor neutron flux 4149700100059 from target. 4149700100060 MONIT-REF (,G.M.Hale+,R,NEANDC-311,10,1992) 4149700100061 MONITOR (1-H-1(N,EL)1-H-1,,SIG) For absolute normalization of 4149700100062 neutron energy spectra. 4149700100063 CORRECTION Correction for multiple scattering and neutron 4149700100064 attenuation in the sample was calculated by Monte 4149700100065 Carlo method, involving detailed modelling of 4149700100066 experiment: energy-angular distribution of source 4149700100067 neutrons, the dimensions and position of scatterer and4149700100068 neutron detector, using MCNP-4B code with ENDF-B6 and 4149700100069 ENDL-85 evaluated data libraries. 4149700100070 Elastic peak was subtracted at every scattering angle.4149700100071 Its energy shape was determined by measurement of the 4149700100072 T(d,n) source neutron spectrum at 0 degree. 4149700100073 ERR-ANALYS (ERR-S) Statistical error (3-30%). 4149700100074 (ERR-1,5.,10.) Uncertainty of detector efficiency 4149700100075 determination (5-10%). 4149700100076 (ERR-2) Uncertainty of absolute normalization of 4149700100077 cross-sections (5%). 4149700100078 (ERR-3) Inaccuracy in calculation of corrections for 4149700100079 multiple neutron interactions with sample (2%).4149700100080 (ERR-T,8.,30.) Total Error from 8% to 30% depending of 4149700100081 energy and angle of scattered neutrons. 4149700100082 HISTORY (20070810C) Compiled At CJD . M.M. 4149700100083 (20120214U) Subent 001 was corrected according to the 4149700100084 comment of M.Bossant: 4149700100085 DETECTOR- shift (IOCH) to the right position . 4149700100086 (20180205R) Data were received fro the author S.Simakov4149700100087 (20180206A) Digitized data were replaced by the 4149700100088 author's ones. 4149700100089 PART-DET (N) was deleted according to a comment of 4149700100090 N.Otsuka (NDS,IAEA) 4149700100091 (20200315U) VDG -> CCW in Facility. 4149700100092 ENDBIB 90 0 4149700100093 COMMON 4 3 4149700100094 EN EN-ERR ERR-2 ERR-3 4149700100095 MEV MEV PER-CENT PER-CENT 4149700100096 14.3 0.1 5. 2. 4149700100097 ENDCOMMON 3 0 4149700100098 ENDSUBENT 97 0 4149700199999 SUBENT 41497002 20180206 41814149700200001 BIB 2 2 4149700200002 REACTION (92-U-238(N,X)0-NN-1,,DE) 4149700200003 STATUS (TABLE) From author S.Simakov 4149700200004 ENDBIB 2 0 4149700200005 NOCOMMON 0 0 4149700200006 DATA 3 42 4149700200007 E DATA ERR-S 4149700200008 MEV MB/MEV MB/MEV 4149700200009 0.562 3519.3 47.6 4149700200010 0.816 3566.4 42.8 4149700200011 1.070 3158.9 36.7 4149700200012 1.318 2759.0 36.1 4149700200013 1.561 2351.1 32.7 4149700200014 1.813 2023.1 31.0 4149700200015 2.074 1739.1 29.5 4149700200016 2.324 1471.0 29.4 4149700200017 2.571 1282.2 25.7 4149700200018 2.827 1096.0 25.8 4149700200019 3.090 913.7 22.1 4149700200020 3.349 777.5 22.5 4149700200021 3.600 664.9 19.6 4149700200022 3.830 577.8 24.1 4149700200023 4.085 505.3 16.5 4149700200024 4.364 438.8 20.0 4149700200025 4.609 379.8 18.1 4149700200026 4.876 323.4 16.7 4149700200027 5.091 291.9 17.3 4149700200028 5.322 258.3 16.1 4149700200029 5.567 226.1 14.0 4149700200030 5.832 203.4 15.0 4149700200031 6.113 179.9 12.9 4149700200032 6.314 169.1 12.6 4149700200033 6.524 153.7 12.1 4149700200034 6.745 140.4 12.2 4149700200035 6.978 131.7 11.2 4149700200036 7.222 118.9 10.3 4149700200037 7.480 112.9 9.4 4149700200038 7.752 105.8 12.1 4149700200039 8.039 96.1 10.2 4149700200040 8.343 90.7 10.1 4149700200041 8.664 91.6 9.4 4149700200042 9.004 80.7 8.3 4149700200043 9.365 76.1 8.2 4149700200044 9.748 71.3 7.9 4149700200045 10.155 73.6 7.8 4149700200046 10.588 70.3 7.4 4149700200047 11.050 61.6 6.7 4149700200048 11.543 56.7 6.5 4149700200049 12.069 61.1 7.8 4149700200050 12.633 45.8 8.6 4149700200051 ENDDATA 44 0 4149700200052 ENDSUBENT 51 0 4149700299999 SUBENT 41497003 20180206 41814149700300001 BIB 3 7 4149700300002 REACTION (92-U-238(N,X)0-NN-1,EM,DA/DE) 4149700300003 COMMENT Of the author. 4149700300004 The value 0.49 +- 2.23 mb/sr/MeV 4149700300005 at 30.deg and E=12.633 MeV is a result of the 4149700300006 subtraction of the large elastically scattered neutron4149700300007 peak . 4149700300008 STATUS (TABLE) From author S.Simakov 4149700300009 ENDBIB 7 0 4149700300010 COMMON 1 3 4149700300011 ANG-ERR-D 4149700300012 ADEG 4149700300013 0.08 4149700300014 ENDCOMMON 3 0 4149700300015 DATA 4 210 4149700300016 ANG E DATA ERR-S 4149700300017 ADEG MEV MB/SR/MEV MB/SR/MEV 4149700300018 30. 0.562 280.01 8.94 4149700300019 30. 0.816 274.14 9.41 4149700300020 30. 1.070 242.92 7.66 4149700300021 30. 1.318 218.13 7.45 4149700300022 30. 1.561 186.15 6.57 4149700300023 30. 1.813 163.30 6.20 4149700300024 30. 2.074 141.79 5.85 4149700300025 30. 2.324 121.50 6.00 4149700300026 30. 2.571 105.53 5.30 4149700300027 30. 2.827 91.54 5.46 4149700300028 30. 3.089 78.32 4.80 4149700300029 30. 3.349 66.42 4.96 4149700300030 30. 3.600 56.71 4.30 4149700300031 30. 3.830 49.68 5.55 4149700300032 30. 4.085 43.88 3.82 4149700300033 30. 4.364 40.41 4.94 4149700300034 30. 4.609 37.91 4.75 4149700300035 30. 4.876 34.73 4.97 4149700300036 30. 5.091 33.64 5.62 4149700300037 30. 5.322 31.70 5.36 4149700300038 30. 5.567 29.25 4.21 4149700300039 30. 5.832 27.63 5.69 4149700300040 30. 6.113 25.48 4.74 4149700300041 30. 6.314 24.91 4.65 4149700300042 30. 6.524 22.52 4.79 4149700300043 30. 6.745 21.19 4.79 4149700300044 30. 6.977 20.75 4.51 4149700300045 30. 7.222 17.95 4.07 4149700300046 30. 7.480 17.84 3.72 4149700300047 30. 7.752 16.46 5.07 4149700300048 30. 8.039 15.88 4.14 4149700300049 30. 8.343 15.52 4.26 4149700300050 30. 8.664 15.86 3.73 4149700300051 30. 9.004 13.86 3.39 4149700300052 30. 9.365 13.62 3.35 4149700300053 30. 9.748 11.73 3.15 4149700300054 30. 10.155 12.07 2.90 4149700300055 30. 10.588 11.12 2.66 4149700300056 30. 11.050 9.76 2.32 4149700300057 30. 11.543 8.81 2.00 4149700300058 30. 12.069 6.41 2.20 4149700300059 30. 12.633 0.49 2.23 4149700300060 60. 0.562 277.83 8.12 4149700300061 60. 0.816 284.20 8.84 4149700300062 60. 1.070 257.21 7.29 4149700300063 60. 1.318 219.80 6.87 4149700300064 60. 1.561 194.99 6.34 4149700300065 60. 1.813 168.80 5.96 4149700300066 60. 2.074 147.63 5.67 4149700300067 60. 2.324 120.99 5.52 4149700300068 60. 2.571 102.34 4.72 4149700300069 60. 2.827 86.37 4.71 4149700300070 60. 3.089 71.80 4.04 4149700300071 60. 3.349 61.89 4.22 4149700300072 60. 3.600 52.81 3.67 4149700300073 60. 3.830 44.98 4.51 4149700300074 60. 4.085 40.09 3.15 4149700300075 60. 4.364 35.18 3.84 4149700300076 60. 4.609 28.90 3.26 4149700300077 60. 4.876 23.06 2.93 4149700300078 60. 5.091 19.70 2.93 4149700300079 60. 5.322 17.39 2.61 4149700300080 60. 5.567 14.67 1.86 4149700300081 60. 5.832 13.74 2.49 4149700300082 60. 6.113 12.12 2.00 4149700300083 60. 6.314 11.17 1.92 4149700300084 60. 6.524 10.52 1.94 4149700300085 60. 6.745 9.50 1.87 4149700300086 60. 6.977 8.77 1.70 4149700300087 60. 7.222 8.38 1.63 4149700300088 60. 7.480 8.21 1.52 4149700300089 60. 7.752 8.45 2.22 4149700300090 60. 8.039 6.88 1.58 4149700300091 60. 8.343 7.03 1.69 4149700300092 60. 8.664 8.13 1.70 4149700300093 60. 9.004 6.72 1.34 4149700300094 60. 9.365 6.43 1.38 4149700300095 60. 9.748 6.15 1.36 4149700300096 60. 10.155 7.24 1.41 4149700300097 60. 10.588 6.48 1.22 4149700300098 60. 11.050 6.01 1.11 4149700300099 60. 11.543 5.86 0.94 4149700300100 60. 12.069 8.42 1.45 4149700300101 60. 12.633 7.93 1.46 4149700300102 90. 0.562 281.67 9.15 4149700300103 90. 0.816 289.30 6.32 4149700300104 90. 1.070 254.23 5.69 4149700300105 90. 1.318 218.75 5.66 4149700300106 90. 1.561 188.52 5.26 4149700300107 90. 1.813 162.03 5.04 4149700300108 90. 2.074 136.09 4.76 4149700300109 90. 2.324 117.82 4.81 4149700300110 90. 2.571 103.01 4.20 4149700300111 90. 2.827 87.40 4.15 4149700300112 90. 3.089 71.07 3.44 4149700300113 90. 3.349 60.04 3.40 4149700300114 90. 3.600 50.72 2.90 4149700300115 90. 3.830 44.05 3.41 4149700300116 90. 4.085 38.56 2.35 4149700300117 90. 4.364 32.15 2.65 4149700300118 90. 4.609 26.53 2.24 4149700300119 90. 4.876 21.38 1.92 4149700300120 90. 5.091 18.46 1.73 4149700300121 90. 5.322 15.24 1.42 4149700300122 90. 5.567 12.98 1.25 4149700300123 90. 5.832 11.00 1.07 4149700300124 90. 6.113 9.81 1.00 4149700300125 90. 6.314 9.38 0.99 4149700300126 90. 6.524 8.59 1.02 4149700300127 90. 6.745 8.01 0.85 4149700300128 90. 6.977 7.28 0.76 4149700300129 90. 7.222 6.51 0.76 4149700300130 90. 7.480 5.74 0.66 4149700300131 90. 7.752 5.23 0.63 4149700300132 90. 8.039 4.73 0.64 4149700300133 90. 8.343 4.39 0.57 4149700300134 90. 8.664 4.24 0.66 4149700300135 90. 9.004 3.92 0.66 4149700300136 90. 9.365 3.82 0.72 4149700300137 90. 9.748 3.89 0.72 4149700300138 90. 10.155 3.80 0.84 4149700300139 90. 10.588 3.63 1.03 4149700300140 90. 11.050 3.58 0.98 4149700300141 90. 11.543 3.90 1.22 4149700300142 90. 12.069 4.02 1.50 4149700300143 90. 12.633 3.83 1.81 4149700300144 120. 0.562 278.67 7.24 4149700300145 120. 0.816 283.78 6.62 4149700300146 120. 1.070 247.78 5.87 4149700300147 120. 1.318 219.59 6.00 4149700300148 120. 1.561 178.63 5.24 4149700300149 120. 1.813 154.58 5.02 4149700300150 120. 2.074 131.37 4.77 4149700300151 120. 2.324 109.95 4.69 4149700300152 120. 2.571 99.25 4.24 4149700300153 120. 2.827 85.08 4.27 4149700300154 120. 3.089 72.76 3.76 4149700300155 120. 3.349 61.67 3.78 4149700300156 120. 3.600 53.10 3.36 4149700300157 120. 3.830 46.45 4.18 4149700300158 120. 4.085 40.28 2.82 4149700300159 120. 4.364 35.22 3.41 4149700300160 120. 4.609 31.43 3.27 4149700300161 120. 4.876 27.83 2.89 4149700300162 120. 5.091 25.87 2.99 4149700300163 120. 5.322 23.17 2.93 4149700300164 120. 5.567 19.93 2.99 4149700300165 120. 5.832 17.29 2.27 4149700300166 120. 6.113 15.03 2.16 4149700300167 120. 6.314 13.82 2.13 4149700300168 120. 6.524 12.67 1.65 4149700300169 120. 6.745 11.53 1.90 4149700300170 120. 6.977 10.56 1.64 4149700300171 120. 7.222 9.59 1.52 4149700300172 120. 7.480 9.00 1.40 4149700300173 120. 7.752 8.16 1.25 4149700300174 120. 8.039 7.49 1.46 4149700300175 120. 8.343 6.78 1.20 4149700300176 120. 8.664 5.99 1.19 4149700300177 120. 9.004 5.38 1.06 4149700300178 120. 9.365 4.80 0.96 4149700300179 120. 9.748 4.52 0.95 4149700300180 120. 10.155 4.04 0.91 4149700300181 120. 10.588 3.82 0.78 4149700300182 120. 11.050 2.95 0.74 4149700300183 120. 11.543 2.75 0.75 4149700300184 120. 12.069 2.68 0.60 4149700300185 120. 12.633 2.76 0.84 4149700300186 150. 0.562 282.80 7.12 4149700300187 150. 0.816 283.16 6.39 4149700300188 150. 1.070 251.34 5.77 4149700300189 150. 1.318 222.00 5.88 4149700300190 150. 1.561 186.36 5.31 4149700300191 150. 1.813 154.71 4.88 4149700300192 150. 2.074 135.67 4.79 4149700300193 150. 2.324 116.13 4.81 4149700300194 150. 2.571 100.63 4.18 4149700300195 150. 2.827 87.16 4.25 4149700300196 150. 3.089 71.31 3.58 4149700300197 150. 3.349 60.84 3.60 4149700300198 150. 3.600 52.84 3.22 4149700300199 150. 3.830 46.52 4.01 4149700300200 150. 4.085 39.54 2.66 4149700300201 150. 4.364 33.46 3.10 4149700300202 150. 4.609 29.21 2.91 4149700300203 150. 4.876 25.33 2.52 4149700300204 150. 5.091 22.58 2.50 4149700300205 150. 5.322 19.66 2.37 4149700300206 150. 5.567 17.69 2.53 4149700300207 150. 5.832 15.98 2.00 4149700300208 150. 6.113 13.39 1.84 4149700300209 150. 6.314 12.15 1.78 4149700300210 150. 6.524 10.32 1.28 4149700300211 150. 6.745 8.75 1.38 4149700300212 150. 6.977 8.40 1.24 4149700300213 150. 7.222 7.66 1.16 4149700300214 150. 7.480 7.02 1.04 4149700300215 150. 7.752 6.38 0.93 4149700300216 150. 8.039 5.96 1.11 4149700300217 150. 8.343 4.87 0.82 4149700300218 150. 8.664 4.77 0.90 4149700300219 150. 9.004 4.55 0.86 4149700300220 150. 9.365 3.78 0.72 4149700300221 150. 9.748 3.79 0.76 4149700300222 150. 10.155 3.94 0.85 4149700300223 150. 10.588 4.87 0.95 4149700300224 150. 11.050 3.65 0.87 4149700300225 150. 11.543 1.94 0.50 4149700300226 150. 12.069 2.70 0.58 4149700300227 150. 12.633 1.27 0.37 4149700300228 ENDDATA 212 0 4149700300229 ENDSUBENT 228 0 4149700399999 ENDENTRY 3 0 4149799999999