Measurement of Fission Cross Section of Neptunium-237 in Resonance Region with Electron Linac-Driven Lead Spectrometer.
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概要
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Making use of a lead neutron slowing-down spectrometer combined with an electron linear accelerator and back-to-back type double fission chambers, we measured the fission cross section of <SUP>237</SUP>Np relative to that of <SUP>235</SUP>U from about 1 eV to about 5 keV with energy resolution (ΔE/E) of about 40%. The experimentally obtained result has been compared with two newly evaluated data files, JENDL-3 and ENDF/B-VI, and with previously measured values by Plattard et al. and by Hoffman et al. Although the shape of the present energy dependent cross section agrees with that of ENDF/B-VI, that of JENDL-3 below 120 eV and that of Plattard et al., the absolute values of above three are from 3 to 4 times smaller than those of the present data. However the Hoffman et al.'s data are rather closer to the present data.
- 一般社団法人 日本原子力学会の論文
著者
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Yamamoto Shuji
Research Center For Cancer Prevention And Screening National Cancer Center
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Fujita Yoshiaki
Research Reactor Institute Kyoto University
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Tamai Tadaharu
Research Reactor Institute, Kyoto University
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Kobayashi Katsuhei
Research Reactor Institute Kyoto Uninversity
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Kimura Itsuro
Department Of Aeronautics And Astronautics School Of Engineering
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Nakagome Yoshihiro
Research Reactor Institute Kyoto University
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Yamanaka Akihiro
Department Of Pharmacology Institute Of Basic Medical Sciences University Of Tsukuba
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Tamai Tadaharu
Research Reactor Institute Kyoto University
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Kanazawa Satoshi
Department Of Medicine Microbiology And Immunology Howard Hughes Medical Institute University Of Cal
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YAMANAKA Akihiro
Department of Nuclear Engineering, Faculty of Engineering, Kyushu University
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