Evaluation of neutron capture cross sections and covariances on $$^{99}$$Tc and $$^{129}$$I in the keV energy region
岩本 信之
Iwamoto, Nobuyuki
Radioisotopes $$^{99}$$Tc and $$^{129}$$I have been recognized as important fission products. This results from having nuclear characteristics of very long half-lives and high fission yields. The neutron capture reaction is referred to as one of the important nuclear transformation reactions for radioactive waste disposal. The covariance of their capture cross sections is requisite to estimate the reduction effects and uncertainty of environmental load. In this work, capture cross section and covariance evaluations were made with nuclear reaction calculation code CCONE and covariance evaluation code KALMAN in the keV energy region. In order to derive the covariance, initial uncertainties were considered for over 50 parameters of, for example, optical model potential, $$gamma$$ strength function, and level density in nuclear reaction models, taking into account the spread of experimental data. The detailed results of this evaluation will be given in this presentation.
使用言語 : English
掲載資料名 : EPJ Web of Conferences (Internet)
: 111
ページ数 : p.03002_1 - 03002_5
発行年月 : 2016/03
出版社名 : EDP Sciences
発表会議名 : 4th International Workshop on Nuclear Data Evaluation for Reactor Applications (WONDER 2015)
開催年月 : 2015/10
開催都市 : Aix-en-Provence
開催国 : France
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論文URL :
キーワード : no keyword
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受委託・共同研究相手機関 : 文部科学省
登録番号 : BB20150636
抄録集掲載番号 : 45000724
論文投稿番号 : 18977
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