Evaluation of neutron total and capture cross sections on $$^{99}$$Tc in the unresolved resonance region
非分離共鳴領域における$$^{99}$$Tcの中性子全断面積及び捕獲断面積の評価
岩本 信之; 片渕 竜也*
Iwamoto, Nobuyuki; Katabuchi, Tatsuya*
The reliable nuclear data on Technetium-99 ($$^{99}$$Tc) are indispensable for wide energy range up to a few MeV, in order to develop environmental load reducing technology. Nevertheless, it is found that the total cross sections of evaluated libraries show large difference in the energies above the resolved resonance to 1 MeV due to no available experimental data. The total cross section was calculated by the coupled-channels optical model. In order to constrain the total cross section in the unresolved resonance region we adopted neutron strength function derived from the resolved resonance data of JENDL-4.0, together with experimental data above 1 MeV. The calculation of capture cross section was done by using the CCONE code. The resonance spacing was derived from the resonance data and used to fix the level density parameter. The present evaluation suggests that the total cross section is different from that of JENDL-4.0. In this presentation, the obtained total and capture cross sections will be compared and discussed with those of evaluated libraries.
使用言語 : English
掲載資料名 : EPJ Web of Conferences (Internet)
: 146
:
ページ数 : p.02049_1 - 02049_4
発行年月 : 2017/09
出版社名 : EDP Sciences
発表会議名 : International Conference on Nuclear Data for Science and Technology (ND 2016)
開催年月 : 2016/09
開催都市 : Bruges
開催国 : Belguim
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論文解説記事
(成果普及情報誌)
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受委託・共同研究相手機関 : 文部科学省
 
登録番号 : BB20152805
抄録集掲載番号 : 45001179
論文投稿番号 : 19410
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