ENTRY 40487 20170724 41764048700000001 SUBENT 40487001 20170724 41764048700100001 BIB 9 25 4048700100002 TITLE Measurements of the fission cross section of 239Pu by 4048700100003 neutrons with energy from 10 eV to 100 keV 4048700100004 AUTHOR (Yu.V.Ryabov) 4048700100005 INSTITUTE (4RUSJIA) 4048700100006 REFERENCE (J,AE,46,154,1979) 4048700100007 (J,SJA,46,178,1979) Eng.trans of J,AE,46,154,1979 4048700100008 FACILITY (REAC,4ZZZDUB) Reactor IBR-30 4048700100009 (LINAC,4ZZZDUB) Linear electronic accelerator LEU-40 4048700100010 SAMPLE 239Pu (120 mg, 2.19E-05 at/b thick) with 1.7% of 240Pu 4048700100011 DETECTOR (FISCH) Multylayer ionization chamber 4048700100012 (BF3) Set of NWI-62 proportional counters filled with 4048700100013 BF3 (82.3% B-10) for neutron spectrum measurement. 4048700100014 MONITOR ((MONIT)94-PU-239(N,F),,INT) Fission integral in 4048700100015 100-200 eV range (1831+/-41.8 b*eV) by averaging some 4048700100016 experimental results normalized to thermal cross 4048700100017 section of 742.5+/-3.7 b. 4048700100018 (5-B-10(N,A)3-LI-7,,SIG) Shape normalization 4048700100019 HISTORY (19800418C) 4048700100020 (20150312A) SD: Updated to new date formats,lower case.4048700100021 Ref. on Engl.transl. of AE added. 4048700100022 (20170320A) M.M. Article was checked, information was 4048700100023 updated in TITLE,AUTHOR,DETECTOR, ERR-ANALYS. 4048700100024 Subent 007 was added. 4048700100025 (20170724A) On. ERR-ANALYS moved to data subentries. 4048700100026 MONIT-ERR deleted. 4048700100027 ENDBIB 25 0 4048700100028 COMMON 3 3 4048700100029 EN-NRM-MIN EN-NRM-MAX MONIT 4048700100030 EV EV B*EV 4048700100031 100. 200. 1831. 4048700100032 ENDCOMMON 3 0 4048700100033 ENDSUBENT 32 0 4048700199999 SUBENT 40487002 20170724 41764048700200001 BIB 5 28 4048700200002 REACTION 1(94-PU-239(N,F),,SIG,,AV) 4048700200003 2(94-PU-239(N,F),,SIG,,AV) 4048700200004 3(94-PU-239(N,F),,SIG,,AV) 4048700200005 4(94-PU-239(N,F),,SIG,,AV) 4048700200006 INC-SOURCE1(REAC) Distance to neutron source of 252.46 m (R1) 4048700200007 2(REAC) Distance to neutron source of 499.96 m (R2) 4048700200008 3(REAC) Rare-impulses mode (RP) 4048700200009 4(REAC) Subcritical booster pulse mode (SBP) 4048700200010 ERR-ANALYS (ERR-T) Following sources are considered in addition 4048700200011 to the counting statistics and 10B(n,a) shape: 4048700200012 1(ERR-1) Normalization (3.41%)4048700200013 (ERR-2,,5.42) Background (<4.03% below the region 4048700200014 covered by the background filter, otherwise <5.42%) 4048700200015 (ERR-3,,4.8) 10B(n,a) statistics and background (<4.8%)4048700200016 2(ERR-1) Normalization (3.09%)4048700200017 (ERR-2,,3.81) Background (<2.13% below the region 4048700200018 covered by the background filter, otherwise <3.81%) 4048700200019 (ERR-3,,4.2) 10B(n,a) statistics and background (<4.2%)4048700200020 3(ERR-1) Normalization (2.98%)4048700200021 (ERR-2,,3.95) Background (<1.38% below the region 4048700200022 covered by the background filter, otherwise <3.95%) 4048700200023 (ERR-3,,4.2) 10B(n,a) statistics and background (<4.2%)4048700200024 4(ERR-1) Normalization (4.56%)4048700200025 (ERR-2,,6.1) Background (<5.50% below the region 4048700200026 covered by the background filter, otherwise <6.1%) 4048700200027 (ERR-3,,4.8) 10B(n,a) statistics and background (<4.8%)4048700200028 STATUS (TABLE) Table 5 of Sov.J.Atom.Energy 46(1979)178 4048700200029 HISTORY (20170724A) On. ERR-ANALYS added. Numbers checked. 4048700200030 ENDBIB 28 0 4048700200031 COMMON 4 3 4048700200032 ERR-1 1ERR-1 2ERR-1 3ERR-1 4 4048700200033 PER-CENT PER-CENT PER-CENT PER-CENT 4048700200034 3.41 3.09 2.98 4.56 4048700200035 ENDCOMMON 3 0 4048700200036 DATA 10 20 4048700200037 EN-MIN EN-MAX DATA 1ERR-T 1DATA 2ERR-T 24048700200038 DATA 3ERR-T 3DATA 4ERR-T 4 4048700200039 EV EV B B B B 4048700200040 B B B B 4048700200041 10. 20. 98.84 4.14 98.24 3.22 4048700200042 97.68 2.81 99.83 4.32 4048700200043 20. 30. 34.72 1.40 31.02 1.01 4048700200044 33.39 0.91 30.78 1.38 4048700200045 30. 40. 4.41 0.49 4.08 0.27 4048700200046 4.05 0.23 3.37 0.43 4048700200047 40. 50. 23.68 0.97 26.80 0.89 4048700200048 25.73 0.72 26.07 1.37 4048700200049 50. 60. 71.92 2.89 71.77 2.36 4048700200050 69.33 1.93 73.47 3.67 4048700200051 60. 70. 58.01 2.26 57.69 1.92 4048700200052 56.94 1.58 56.96 2.93 4048700200053 70. 80. 62.59 2.47 64.18 2.19 4048700200054 63.87 1.74 63.93 3.06 4048700200055 80. 90. 64.11 2.18 66.27 2.08 4048700200056 66.01 1.89 67.13 3.18 4048700200057 90. 100. 31.49 1.26 30.85 1.08 4048700200058 32.13 0.92 32.02 1.83 4048700200059 100. 200. 18.31 0.62 18.31 0.57 4048700200060 18.31 0.55 18.31 0.78 4048700200061 200. 300. 18.07 0.63 17.94 0.57 4048700200062 17.36 0.52 17.57 0.99 4048700200063 300. 400. 8.82 0.33 8.89 0.31 4048700200064 8.20 0.25 8.67 0.50 4048700200065 400. 500. 9.37 0.38 9.08 0.32 4048700200066 10.31 0.33 9.34 0.57 4048700200067 500. 600. 15.03 0.62 15.69 0.54 4048700200068 16.33 0.54 16.34 0.92 4048700200069 600. 700. 4.61 0.19 5.03 0.17 4048700200070 5.22 0.18 4.83 0.29 4048700200071 700. 800. 5.55 0.24 5.80 0.21 4048700200072 5.64 0.19 6.39 0.35 4048700200073 800. 900. 5.49 0.24 5.09 0.19 4048700200074 5.02 0.18 5.33 0.39 4048700200075 900. 1000. 8.97 0.39 8.72 0.32 4048700200076 8.32 0.28 8.86 0.60 4048700200077 1000. 2000. 4.87 0.22 4.31 0.17 4048700200078 4.48 0.15 4.32 0.29 4048700200079 2000. 3000. 3.20 0.15 3.10 0.13 4048700200080 3.26 0.12 3.30 0.22 4048700200081 ENDDATA 44 0 4048700200082 ENDSUBENT 81 0 4048700299999 SUBENT 40487003 20170724 41764048700300001 BIB 5 13 4048700300002 REACTION (94-PU-239(N,F),,SIG) 4048700300003 INC-SOURCE (REAC) Subcritical booster pulse mode (SBP) 4048700300004 ERR-ANALYS (ERR-T) Following sources are considered in addition 4048700300005 to the counting statistics and 10B(n,a) shape: 4048700300006 (ERR-1) Normalization (4.56%)4048700300007 (ERR-2,,6.1) Background (<5.50% below the region 4048700300008 covered by the background filter, otherwise <6.1%) 4048700300009 (ERR-3,,4.8) 10B(n,a) statistics and background (<4.8%)4048700300010 STATUS (TABLE) Table 6 of Sov.J.Atom.Energy 46(1979)178 4048700300011 (COREL,40487004) High energy data from R1 mode 4048700300012 (COREL,40487005) High energy data from R2 mode 4048700300013 (COREL,40487006) High energy data from RP mode 4048700300014 HISTORY (20170724A) On. ERR-ANALYS added. Numbers checked. 4048700300015 ENDBIB 13 0 4048700300016 COMMON 1 3 4048700300017 ERR-1 4048700300018 PER-CENT 4048700300019 4.56 4048700300020 ENDCOMMON 3 0 4048700300021 DATA 4 17 4048700300022 EN-MIN EN-MAX DATA ERR-T 4048700300023 KEV KEV B B 4048700300024 3.0 4.0 3.034 0.204 4048700300025 4.0 5.0 2.371 0.162 4048700300026 5.0 6.0 2.206 0.151 4048700300027 6.0 7.0 1.997 0.134 4048700300028 7.0 8.0 2.202 0.154 4048700300029 8.0 9.0 2.243 0.153 4048700300030 9.0 10.0 1.876 0.133 4048700300031 10.0 15.0 1.719 0.126 4048700300032 15.0 20.0 1.655 0.124 4048700300033 20.0 30.0 1.597 0.122 4048700300034 30.0 40.0 1.568 0.121 4048700300035 40.0 50.0 1.519 0.124 4048700300036 50.0 60.0 1.496 0.123 4048700300037 60.0 70.0 1.459 0.125 4048700300038 70.0 80.0 1.503 0.136 4048700300039 80.0 90.0 1.487 0.143 4048700300040 90.0 100.0 1.506 0.144 4048700300041 ENDDATA 19 0 4048700300042 ENDSUBENT 41 0 4048700399999 SUBENT 40487004 20170724 41764048700400001 BIB 5 13 4048700400002 REACTION (94-PU-239(N,F),,SIG) 4048700400003 INC-SOURCE (REAC) Distance to neutron source of 252.46 m (R1) 4048700400004 ERR-ANALYS (ERR-T) Following sources are considered in addition 4048700400005 to the counting statistics and 10B(n,a) shape: 4048700400006 (ERR-1) Normalization (3.41%)4048700400007 (ERR-2,,5.42) Background (<4.03% below the region 4048700400008 covered by the background filter, otherwise <5.42%) 4048700400009 (ERR-3,,4.8) 10B(n,a) statistics and background (<4.8%)4048700400010 STATUS (TABLE) Table 7 of Sov.J.Atom.Energy 46(1979)178 4048700400011 (COREL,40487003) High energy data from SBP mode 4048700400012 (COREL,40487005) High energy data from R2 mode 4048700400013 (COREL,40487006) High energy data from RP mode 4048700400014 HISTORY (20170724A) On. ERR-ANALYS added. Numbers checked. 4048700400015 ENDBIB 13 0 4048700400016 COMMON 1 3 4048700400017 ERR-1 4048700400018 PER-CENT 4048700400019 3.41 4048700400020 ENDCOMMON 3 0 4048700400021 DATA 3 34 4048700400022 EN DATA ERR-T 4048700400023 KEV B B 4048700400024 3.11 3.32 0.17 4048700400025 3.27 3.29 0.17 4048700400026 3.45 3.24 0.17 4048700400027 3.63 3.05 0.16 4048700400028 3.83 2.84 0.15 4048700400029 4.05 2.67 0.15 4048700400030 4.29 2.65 0.15 4048700400031 4.55 2.29 0.13 4048700400032 4.84 2.33 0.14 4048700400033 5.15 2.25 0.14 4048700400034 5.49 2.01 0.12 4048700400035 5.87 2.17 0.13 4048700400036 6.29 1.83 0.11 4048700400037 6.76 2.01 0.13 4048700400038 7.28 2.16 0.13 4048700400039 7.86 2.18 0.13 4048700400040 8.52 2.19 0.13 4048700400041 9.26 1.97 0.12 4048700400042 10.10 1.82 0.12 4048700400043 11.05 1.61 0.10 4048700400044 12.17 1.74 0.11 4048700400045 13.45 1.66 0.10 4048700400046 14.95 1.67 0.10 4048700400047 16.70 1.78 0.11 4048700400048 18.80 1.69 0.11 4048700400049 21.30 1.69 0.11 4048700400050 24.27 1.62 0.11 4048700400051 28.13 1.63 0.11 4048700400052 32.83 1.56 0.12 4048700400053 38.82 1.53 0.12 4048700400054 46.62 1.51 0.12 4048700400055 57.03 1.50 0.12 4048700400056 71.39 1.53 0.12 4048700400057 91.97 1.48 0.13 4048700400058 ENDDATA 36 0 4048700400059 ENDSUBENT 58 0 4048700499999 SUBENT 40487005 20170724 41764048700500001 BIB 5 13 4048700500002 REACTION (94-PU-239(N,F),,SIG) 4048700500003 INC-SOURCE (REAC) Distance to neutron source of 499.96 m (R2) 4048700500004 ERR-ANALYS (ERR-T) Following sources are considered in addition 4048700500005 to the counting statistics and 10B(n,a) shape: 4048700500006 (ERR-1) Normalization (3.09%)4048700500007 (ERR-2,,3.81) Background (<2.13% below the region 4048700500008 covered by the background filter, otherwise <3.81%) 4048700500009 (ERR-3,,4.2) 10B(n,a) statistics and background (<4.2%)4048700500010 STATUS (TABLE) Table 8 of Sov.J.Atom.Energy 46(1979)178 4048700500011 (COREL,40487003) High energy data from SBP mode 4048700500012 (COREL,40487004) High energy data from R1 mode 4048700500013 (COREL,40487006) High energy data from RP mode 4048700500014 HISTORY (20170724A) On. ERR-ANALYS added. Numbers checked. 4048700500015 ENDBIB 13 0 4048700500016 COMMON 1 3 4048700500017 ERR-1 4048700500018 PER-CENT 4048700500019 3.09 4048700500020 ENDCOMMON 3 0 4048700500021 DATA 3 11 4048700500022 EN DATA ERR-T 4048700500023 KEV B B 4048700500024 3.10 2.994 0.126 4048700500025 3.43 2.731 0.126 4048700500026 3.81 2.456 0.118 4048700500027 4.26 2.172 0.109 4048700500028 4.79 2.510 0.133 4048700500029 5.43 2.189 0.128 4048700500030 6.21 2.088 0.131 4048700500031 7.17 2.207 0.147 4048700500032 8.37 2.271 0.175 4048700500033 9.90 2.108 0.176 4048700500034 11.88 1.745 0.159 4048700500035 ENDDATA 13 0 4048700500036 ENDSUBENT 35 0 4048700599999 SUBENT 40487006 20170724 41764048700600001 BIB 5 13 4048700600002 REACTION (94-PU-239(N,F),,SIG) 4048700600003 INC-SOURCE (REAC) Rare-impulses mode (RP) 4048700600004 ERR-ANALYS (ERR-T) Following sources are considered in addition 4048700600005 to the counting statistics and 10B(n,a) shape: 4048700600006 (ERR-1) Normalization (2.98%)4048700600007 (ERR-2,,3.95) Background (<1.38% below the region 4048700600008 covered by the background filter, otherwise <3.95%) 4048700600009 (ERR-3,,4.2) 10B(n,a) statistics and background (<4.2%)4048700600010 STATUS (TABLE) Table 9 of Sov.J.Atom.Energy 46(1979)178 4048700600011 (COREL,40487003) High energy data from SBP mode 4048700600012 (COREL,40487004) High energy data from R1 mode 4048700600013 (COREL,40487005) High energy data from R2 mode 4048700600014 HISTORY (20170724A) On. ERR-ANALYS added. Numbers checked. 4048700600015 ENDBIB 13 0 4048700600016 COMMON 1 3 4048700600017 ERR-1 4048700600018 PER-CENT 4048700600019 2.98 4048700600020 ENDCOMMON 3 0 4048700600021 DATA 3 27 4048700600022 EN DATA ERR-T 4048700600023 KEV B B 4048700600024 3.18 3.168 0.125 4048700600025 3.34 2.969 0.122 4048700600026 3.51 2.951 0.121 4048700600027 3.70 3.128 0.126 4048700600028 3.91 2.781 0.121 4048700600029 4.13 2.552 0.117 4048700600030 4.38 2.255 0.108 4048700600031 4.64 2.423 0.111 4048700600032 4.93 2.318 0.112 4048700600033 5.25 2.266 0.110 4048700600034 5.60 2.163 0.108 4048700600035 5.99 2.151 0.108 4048700600036 6.41 2.019 0.106 4048700600037 6.89 2.095 0.109 4048700600038 7.42 2.236 0.113 4048700600039 8.01 2.291 0.116 4048700600040 8.68 2.181 0.113 4048700600041 9.44 2.018 0.109 4048700600042 10.30 1.765 0.109 4048700600043 11.28 1.631 0.107 4048700600044 12.41 1.796 0.113 4048700600045 13.72 1.685 0.108 4048700600046 15.24 1.645 0.107 4048700600047 17.04 1.721 0.114 4048700600048 19.17 1.695 0.113 4048700600049 21.73 1.610 0.112 4048700600050 34.84 1.556 0.111 4048700600051 ENDDATA 29 0 4048700600052 ENDSUBENT 51 0 4048700699999 SUBENT 40487007 20170724 41764048700700001 BIB 5 8 4048700700002 REACTION (94-PU-239(N,F),,SIG,,AV) 4048700700003 ANALYSIS Average value of 4 measurements 4048700700004 ERR-ANALYS (DATA-ERR) No information on the source of uncertainty 4048700700005 STATUS (TABLE) Table 5 of Sov.J.Atom.Energy 46(1979)178 4048700700006 (DEP,40487002) Four measurements 4048700700007 HISTORY (20170320C) M.M. Subent was added. 4048700700008 (20170724A) On. ERR-ANALYS added. ERR-T -> DATA-ERR. 4048700700009 Numbers checked. EN-MAX: 100 eV->1000 eV at 18th group4048700700010 ENDBIB 8 0 4048700700011 NOCOMMON 0 0 4048700700012 DATA 4 20 4048700700013 EN-MIN EN-MAX DATA DATA-ERR 4048700700014 EV EV B B 4048700700015 10. 20. 98.648 0.920 4048700700016 20. 30. 32.478 1.903 4048700700017 30. 40. 3.978 0.521 4048700700018 40. 50. 25.570 1.337 4048700700019 50. 60. 71.623 1.711 4048700700020 60. 70. 57.400 0.536 4048700700021 70. 80. 63.643 0.714 4048700700022 80. 90. 65.880 1.273 4048700700023 90. 100. 31.623 0.586 4048700700024 100. 200. 18.310 0.418 4048700700025 200. 300. 17.735 0.328 4048700700026 300. 400. 8.645 0.310 4048700700027 400. 500. 9.524 0.539 4048700700028 500. 600. 15.848 0.624 4048700700029 600. 700. 4.923 0.303 4048700700030 700. 800. 5.845 0.378 4048700700031 800. 900. 5.233 0.217 4048700700032 900. 1000. 8.718 0.285 4048700700033 1000. 2000. 4.495 0.263 4048700700034 2000. 3000. 3.215 0.87 4048700700035 ENDDATA 22 0 4048700700036 ENDSUBENT 35 0 4048700799999 ENDENTRY 7 0 4048799999999