ENTRY 22644 20220216 23102264400000001 SUBENT 22644001 20220216 23102264400100001 BIB 10 37 2264400100002 TITLE Measurements of neutron induced fission cross- 2264400100003 section for 242m-Am from 0.003 eV to 10 keV using lead2264400100004 slowing-down spectrometer, thermal neutron facility 2264400100005 and time-of-flight method 2264400100006 AUTHOR (T.Kai,K.Kobayashi,S.Yamamoto,H.-J.Cho,Y.Fujita, 2264400100007 I.Kimura,Y.Ohkawachi,T.Wakabayashi) 2264400100008 INSTITUTE (2JPNKTO) Kai, Kobayashi, Yamamoto, Cho, Fujita, 2264400100009 Research Reactor Institute. 2264400100010 Kimura, Dept. Of Nuclear Engineering 2264400100011 (2JPNPNC) Ohkawachi, Wakabayashi, Japan Nuclear 2264400100012 Cycle Development Institute 2264400100013 REFERENCE (J,ANE,28,723,2001) Main Reference 2264400100014 ((S,JAERI-C-98-003,225,1998)= 2264400100015 (S,INDC(JPN)-180,225,1998)) 2264400100016 DETECTOR (FISCH) Back-to-back double fission chamber made of 2264400100017 aluminium, 40 mm in diameter, 39 mm length filled with 2264400100018 97% argon, 3% nitrogen gas at pressure aprx. 1 Atm 2264400100019 (SIBAR,HPGE) For number-of-atoms in Am-242m and U-235 2264400100020 samples determination 2264400100021 PART-DET (FF) For cross section measurement 2264400100022 (A,G) For number-of-atoms in Am-242m and U-235 2264400100023 samples determination 2264400100024 SAMPLE Americium 242m was electrodeposited on the stainless 2264400100025 steel disk 28 mm diameter, 0.2 mm thick, radioactive 2264400100026 area is 20 mm diameter, Am-242m thickness 2.5 ug/cm2 2264400100027 number of atoms (2.04+-0.04)E+16. 2264400100028 Am-242m content is 85.25%, Am-241 content is 14.22%, 2264400100029 Am-243 content is 0.53% 2264400100030 CORRECTION Corrections were made for Cm-242 spontaneous fission 2264400100031 produced from beta-decay of Am-242m, for fission 2264400100032 cross sections of impurities Am-243 and Am-243, 2264400100033 for background counting rate 2264400100034 ERR-ANALYS (DATA-ERR) No information about source of uncertainty 2264400100035 HISTORY (20010926C) + + Compiled by S.M. + + 2264400100036 (20010927U) Last checking has been done. 2264400100037 (20220216U) SD: Year of the JAERI-C-98-003,225 ref. 2264400100038 updated (1997 -> 1998). ERR-T -> DATA-ERR. 2264400100039 ENDBIB 37 0 2264400100040 NOCOMMON 0 0 2264400100041 ENDSUBENT 40 0 2264400199999 SUBENT 22644002 20220216 23102264400200001 BIB 8 9 2264400200002 REACTION (95-AM-242-M(N,F),,SIG,,MXW) 2264400200003 FACILITY (REAC,2JPNKTO) Kyoto University Research Reactor 2264400200004 MONITOR (92-U-235(N,F),,SIG,,MXW) 2264400200005 SAMPLE Uranium Oxide, 99.91% enrichment, thickness 3.5 ug/cm22264400200006 number of U-235 nuclei is (2.80+-0.10)E+16 2264400200007 INC-SOURCE (THCOL) Heavy water thermal neutron facility 2264400200008 INC-SPECT Thermal neutrons, cadmium ratio is 780 2264400200009 STATUS (TABLE) Table 3 from Annals Nucl.En.,28(2001)723 2264400200010 HISTORY (20220216U) SD: ERR-T -> DATA-ERR. 2264400200011 ENDBIB 9 0 2264400200012 NOCOMMON 0 0 2264400200013 DATA 3 1 2264400200014 EN-MEAN DATA DATA-ERR 2264400200015 EV B B 2264400200016 0.0253 5.85E+03 2.5E+02 2264400200017 ENDDATA 3 0 2264400200018 ENDSUBENT 17 0 2264400299999 SUBENT 22644003 20220216 23102264400300001 BIB 9 17 2264400300002 REACTION (95-AM-242-M(N,F),,SIG,,SDT) 2264400300003 FACILITY (LINAC,2JPNKTO) 46 MeV Electron Linear Accelerator, 2264400300004 pulse repetition 200 Hz, pulse width 22 ns, electron 2264400300005 peak current 1.5 Amperes, electron energy 31 MeV 2264400300006 METHOD (SLODT) Slowing-down time 2264400300007 MONITOR (92-U-235(N,F),,SIG) 2264400300008 INC-SOURCE (PHOTO) Photonuclear source, gamma-quanta produced by 2264400300009 electrons impinging tantalum target placed in 2264400300010 lead cube 1.5*1.5*1.5 m3 (apprx. 40 tons) 2264400300011 SAMPLE Uranium oxide, 99.91% enrichment, thickness 3.5 ug/cm22264400300012 number of U-235 nuclei is (2.80+-0.10)E+16 2264400300013 REL-REF (N,,K.Kobayashi+,J,NIM/A,385,145,1997) Details of 2264400300014 Kyoto lead slowing-down spectrometer properties 2264400300015 STATUS (TABLE) Data obtained via Internet, Tetsuya Kai, 2264400300016 2001-07-19 2264400300017 HISTORY (20220216A) SD: SF8=SDT added to REACTION code. 2264400300018 ERR-T -> DATA-ERR. 2264400300019 ENDBIB 17 0 2264400300020 NOCOMMON 0 0 2264400300021 DATA 3 114 2264400300022 EN DATA DATA-ERR 2264400300023 EV B B 2264400300024 2.82E-02 6.64E+03 2.8E+02 2264400300025 3.35E-02 6.26E+03 2.7E+02 2264400300026 3.76E-02 5.91E+03 2.6E+02 2264400300027 4.22E-02 5.81E+03 2.5E+02 2264400300028 4.73E-02 5.64E+03 2.3E+02 2264400300029 5.31E-02 5.28E+03 2.3E+02 2264400300030 5.96E-02 5.25E+03 2.4E+02 2264400300031 6.68E-02 5.12E+03 2.3E+02 2264400300032 7.5E-02 4.92E+03 2.2E+02 2264400300033 8.41E-02 4.83E+03 2.2E+02 2264400300034 9.44E-02 4.72E+03 2.1E+02 2264400300035 1.06E-01 4.62E+03 2.E+02 2264400300036 1.19E-01 4.45E+03 2.E+02 2264400300037 1.33E-01 4.31E+03 1.9E+02 2264400300038 1.49E-01 4.12E+03 1.9E+02 2264400300039 1.68E-01 3.91E+03 1.8E+02 2264400300040 1.89E-01 3.69E+03 1.7E+02 2264400300041 2.12E-01 3.35E+03 1.6E+02 2264400300042 2.37E-01 3.06E+03 1.4E+02 2264400300043 2.66E-01 2.74E+03 1.3E+02 2264400300044 2.99E-01 2.44E+03 1.2E+02 2264400300045 3.35E-01 2.15E+03 1.E+02 2264400300046 3.76E-01 1.92E+03 9.1E+01 2264400300047 4.22E-01 1.7E+03 8.3E+01 2264400300048 4.73E-01 1.52E+03 7.2E+01 2264400300049 5.31E-01 1.35E+03 6.5E+01 2264400300050 5.96E-01 1.22E+03 6.E+01 2264400300051 6.68E-01 1.1E+03 5.4E+01 2264400300052 7.5E-01 9.58E+02 4.7E+01 2264400300053 8.41E-01 8.49E+02 4.2E+01 2264400300054 9.44E-01 7.54E+02 3.6E+01 2264400300055 1.06 6.72E+02 3.5E+01 2264400300056 1.19 5.93E+02 3.E+01 2264400300057 1.33 5.39E+02 2.6E+01 2264400300058 1.49 4.89E+02 2.4E+01 2264400300059 1.68 4.5E+02 2.4E+01 2264400300060 1.89 4.11E+02 2.E+01 2264400300061 2.12 3.68E+02 1.8E+01 2264400300062 2.37 3.41E+02 1.7E+01 2264400300063 2.66 3.26E+02 1.6E+01 2264400300064 2.99 3.24E+02 1.6E+01 2264400300065 3.35 3.12E+02 1.5E+01 2264400300066 3.76 2.86E+02 1.4E+01 2264400300067 4.22 2.58E+02 1.2E+01 2264400300068 4.73 2.37E+02 1.2E+01 2264400300069 5.31 2.24E+02 1.1E+01 2264400300070 5.96 2.02E+02 9.8 2264400300071 6.68 1.72E+02 8.8 2264400300072 7.5 1.44E+02 7.2 2264400300073 8.41 1.26E+02 6.1 2264400300074 9.44 1.15E+02 5.5 2264400300075 1.06E+01 1.17E+02 5.3 2264400300076 1.19E+01 1.24E+02 5.5 2264400300077 1.33E+01 1.29E+02 5.6 2264400300078 1.49E+01 1.29E+02 5.7 2264400300079 1.68E+01 1.26E+02 5.6 2264400300080 1.89E+01 1.21E+02 5.5 2264400300081 2.12E+01 1.11E+02 5.4 2264400300082 2.37E+01 1.03E+02 4.8 2264400300083 2.66E+01 9.78E+01 4.4 2264400300084 2.99E+01 9.38E+01 4.2 2264400300085 3.35E+01 8.7E+01 3.9 2264400300086 3.76E+01 8.05E+01 3.8 2264400300087 4.22E+01 7.32E+01 3.3 2264400300088 4.73E+01 7.1E+01 3.2 2264400300089 5.31E+01 6.95E+01 3. 2264400300090 5.96E+01 6.56E+01 3. 2264400300091 6.68E+01 6.11E+01 2.7 2264400300092 7.5E+01 5.58E+01 2.6 2264400300093 8.41E+01 5.23E+01 2.4 2264400300094 9.44E+01 5.04E+01 2.2 2264400300095 1.06E+02 4.64E+01 2.1 2264400300096 1.19E+02 4.32E+01 2. 2264400300097 1.33E+02 4.07E+01 1.8 2264400300098 1.49E+02 3.86E+01 1.7 2264400300099 1.68E+02 3.78E+01 1.6 2264400300100 1.89E+02 3.69E+01 1.7 2264400300101 2.12E+02 3.54E+01 1.6 2264400300102 2.37E+02 3.38E+01 1.5 2264400300103 2.66E+02 3.15E+01 1.4 2264400300104 2.99E+02 3.04E+01 1.3 2264400300105 3.35E+02 2.68E+01 1.3 2264400300106 3.76E+02 2.36E+01 1.1 2264400300107 4.22E+02 2.26E+01 1.1 2264400300108 4.73E+02 2.12E+01 9.6E-01 2264400300109 5.31E+02 2.05E+01 9.7E-01 2264400300110 5.96E+02 1.93E+01 8.8E-01 2264400300111 6.68E+02 1.8E+01 9.2E-01 2264400300112 7.5E+02 1.73E+01 8.7E-01 2264400300113 8.41E+02 1.62E+01 9.9E-01 2264400300114 9.44E+02 1.53E+01 7.8E-01 2264400300115 1.06E+03 1.4E+01 7.4E-01 2264400300116 1.19E+03 1.38E+01 7.7E-01 2264400300117 1.33E+03 1.28E+01 6.7E-01 2264400300118 1.49E+03 1.18E+01 5.9E-01 2264400300119 1.68E+03 1.11E+01 5.9E-01 2264400300120 1.89E+03 1.03E+01 6.2E-01 2264400300121 2.12E+03 1.01E+01 6.7E-01 2264400300122 2.37E+03 9.81 5.E-01 2264400300123 2.66E+03 8.64 4.3E-01 2264400300124 2.99E+03 8.22 5.6E-01 2264400300125 3.35E+03 8.05 3.6E-01 2264400300126 3.76E+03 8.29 4.3E-01 2264400300127 4.22E+03 8.17 4.3E-01 2264400300128 4.73E+03 7.41 3.9E-01 2264400300129 5.31E+03 6.81 3.8E-01 2264400300130 5.96E+03 6.39 3.5E-01 2264400300131 6.68E+03 5.82 4.6E-01 2264400300132 7.5E+03 5.84 3.3E-01 2264400300133 8.41E+03 5.15 3.7E-01 2264400300134 9.44E+03 4.95 4.2E-01 2264400300135 1.06E+04 4.82 4.7E-01 2264400300136 1.19E+04 4.91 2.6E-01 2264400300137 1.33E+04 5.17 2.2E-01 2264400300138 ENDDATA 116 0 2264400300139 ENDSUBENT 138 0 2264400399999 SUBENT 22644004 20220216 23102264400400001 BIB 11 23 2264400400002 REACTION (95-AM-242-M(N,F),,SIG) 2264400400003 FACILITY (LINAC,2JPNKTO) 46 MeV Electron Linear Accelerator, 2264400400004 pulse repetition 80 Hz, pulse width 2 usec, electron 2264400400005 peak current 0.7 mAmperes, electron energy 31 MeV 2264400400006 METHOD (TOF) Time-of-flight, flight path is 5.1+-0.02 m 2264400400007 MONITOR (92-U-235(N,F),,SIG) 2264400400008 (5-B-10(N,A)3-LI-7,,SIG) Below 1 keV 2264400400009 DETECTOR (BF3) 2264400400010 ANALYSIS Result was normalized to the absolute value obtained 2264400400011 with back-to-back fission chamber in the neutron 2264400400012 energy region 200 - 1000 eV with those obtained with 2264400400013 boron counter for energy region below 1 keV 2264400400014 SAMPLE Uranium oxide, 99.91% enrichment, thickness 41 ug/cm2,2264400400015 number of U-235 nuclei is (3.28+-0.04)E+17 2264400400016 INC-SOURCE (PHOTO) Photonuclear source, gamma-quanta produced by 2264400400017 electrons impinging tantalum target placed in 2264400400018 light-water tank (aluminum, 50*50*50 cm3) 2264400400019 INC-SPECT Energy calibration was performed with the metal plates2264400400020 resonance filters of samarium (0.5 mm thick), silver 2264400400021 (0.5 mm thick), Indium (0.2 mm thick) 2264400400022 STATUS (TABLE) Data obtained via Internet, Tetsuya Kai, 2264400400023 2001-07-19 2264400400024 HISTORY (20220216U) SD: ERR-T -> DATA-ERR. 2264400400025 ENDBIB 23 0 2264400400026 NOCOMMON 0 0 2264400400027 DATA 3 84 2264400400028 EN DATA DATA-ERR 2264400400029 EV B B 2264400400030 2.661E-03 1.69E+04 1.8E+03 2264400400031 2.985E-03 1.7E+04 1.6E+03 2264400400032 3.35E-03 1.4E+04 1.2E+03 2264400400033 3.758E-03 1.38E+04 9.6E+02 2264400400034 4.217E-03 1.34E+04 8.1E+02 2264400400035 4.732E-03 1.2E+04 6.4E+02 2264400400036 5.309E-03 1.17E+04 5.E+02 2264400400037 5.957E-03 1.06E+04 4.1E+02 2264400400038 6.683E-03 9.72E+03 3.3E+02 2264400400039 7.499E-03 9.77E+03 2.7E+02 2264400400040 8.414E-03 8.87E+03 2.2E+02 2264400400041 9.441E-03 8.58E+03 1.8E+02 2264400400042 1.059E-02 8.76E+03 1.6E+02 2264400400043 1.189E-02 8.3E+03 1.4E+02 2264400400044 1.333E-02 7.7E+03 1.1E+02 2264400400045 1.496E-02 7.26E+03 9.9E+01 2264400400046 1.679E-02 7.1E+03 8.6E+01 2264400400047 1.884E-02 7.07E+03 7.8E+01 2264400400048 2.114E-02 6.72E+03 6.8E+01 2264400400049 2.371E-02 6.42E+03 6.1E+01 2264400400050 2.661E-02 6.22E+03 5.6E+01 2264400400051 2.985E-02 6.02E+03 5.1E+01 2264400400052 3.35E-02 5.86E+03 4.8E+01 2264400400053 3.758E-02 5.64E+03 4.5E+01 2264400400054 4.217E-02 5.56E+03 4.3E+01 2264400400055 4.732E-02 5.46E+03 4.2E+01 2264400400056 5.309E-02 5.34E+03 4.2E+01 2264400400057 5.957E-02 5.27E+03 4.2E+01 2264400400058 6.683E-02 5.14E+03 4.3E+01 2264400400059 7.499E-02 5.24E+03 4.6E+01 2264400400060 8.414E-02 5.15E+03 4.8E+01 2264400400061 9.441E-02 4.93E+03 5.1E+01 2264400400062 1.059E-01 4.98E+03 5.8E+01 2264400400063 1.189E-01 4.85E+03 6.5E+01 2264400400064 1.333E-01 4.79E+03 7.5E+01 2264400400065 1.496E-01 4.59E+03 8.5E+01 2264400400066 1.679E-01 4.41E+03 9.7E+01 2264400400067 1.884E-01 4.37E+03 1.1E+02 2264400400068 2.113E-01 3.86E+03 1.2E+02 2264400400069 2.371E-01 3.47E+03 1.2E+02 2264400400070 2.661E-01 2.89E+03 1.2E+02 2264400400071 2.985E-01 2.53E+03 1.1E+02 2264400400072 3.35E-01 2.13E+03 1.1E+02 2264400400073 3.758E-01 1.6E+03 9.8E+01 2264400400074 4.217E-01 1.48E+03 9.4E+01 2264400400075 4.732E-01 1.18E+03 8.7E+01 2264400400076 5.309E-01 9.76E+02 8.3E+01 2264400400077 5.957E-01 1.1E+03 8.4E+01 2264400400078 6.683E-01 1.13E+03 8.5E+01 2264400400079 7.499E-01 8.09E+02 7.6E+01 2264400400080 8.414E-01 7.56E+02 7.4E+01 2264400400081 9.441E-01 7.44E+02 7.3E+01 2264400400082 1.059 6.22E+02 7.1E+01 2264400400083 1.189 4.77E+02 6.5E+01 2264400400084 1.334 4.15E+02 6.2E+01 2264400400085 1.496 4.58E+02 6.2E+01 2264400400086 1.679 3.96E+02 5.8E+01 2264400400087 1.884 3.35E+02 5.6E+01 2264400400088 2.114 3.51E+02 5.4E+01 2264400400089 2.371 2.74E+02 5.2E+01 2264400400090 2.661 1.64E+02 4.7E+01 2264400400091 2.985 2.76E+02 5.E+01 2264400400092 3.35 4.69E+02 5.5E+01 2264400400093 3.758 2.16E+02 4.7E+01 2264400400094 4.217 2.28E+02 4.6E+01 2264400400095 4.732 1.48E+02 4.E+01 2264400400096 5.309 1.44E+02 4.2E+01 2264400400097 5.957 1.67E+02 4.E+01 2264400400098 6.683 1.21E+02 3.8E+01 2264400400099 7.499 9.07E+01 3.4E+01 2264400400100 8.414 5.9E+01 3.1E+01 2264400400101 9.441 1.E+02 3.3E+01 2264400400102 1.059E+01 1.12E+02 3.3E+01 2264400400103 1.189E+01 1.98E+02 3.6E+01 2264400400104 1.334E+01 1.06E+02 3.2E+01 2264400400105 1.496E+01 1.2E+02 3.2E+01 2264400400106 1.679E+01 1.18E+02 3.2E+01 2264400400107 1.884E+01 1.4E+02 3.2E+01 2264400400108 2.114E+01 8.64E+01 2.9E+01 2264400400109 2.371E+01 1.36E+02 3.1E+01 2264400400110 2.661E+01 9.58E+01 2.8E+01 2264400400111 2.985E+01 8.23E+01 2.9E+01 2264400400112 3.35E+01 7.9E+01 2.5E+01 2264400400113 3.758E+01 5.96E+01 2.5E+01 2264400400114 ENDDATA 86 0 2264400400115 ENDSUBENT 114 0 2264400499999 ENDENTRY 4 0 2264499999999