Contribution of the JRC to the development of neutron resonance densitometry to characterize melted fuel from severe accidents
過酷事故で生成した溶融燃料計量のための中性子共鳴濃度分析法開発へのJRCの貢献
Schillebeeckx, P.*; Becker, B.*; Emiliani, F.*; Kopecky, S.*; Kauwenberghs, K.*; Moens, A.*; Mondelaers, W.*; Sibbens, G.*; 原田 秀郎; 北谷 文人; 小泉 光生; 呉田 昌俊; 飯村 秀紀; 高峰 潤; 土屋 晴文; Abousahl, S.*; Moxon, M.*
Schillebeeckx, P.*; Becker, B.*; Emiliani, F.*; Kopecky, S.*; Kauwenberghs, K.*; Moens, A.*; Mondelaers, W.*; Sibbens, G.*; Harada, Hideo; Kitatani, Fumito; Koizumi, Mitsuo; Kureta, Masatoshi; Iimura, Hideki; Takamine, Jun; Tsuchiya, Harufumi; Abousahl, S.*; Moxon, M.*
Neutron resonance densitometry (NRD) is proposed as a non-destructive method to characterize particle like debris originating from severe nuclear accidents such as the one occurred at the Fukushima Daiichi Nuclear Power Plants. The method strongly relies on the use of Neutron Resonance Transmission Analysis (NRTA) to quantify the amount of special nuclear materials present in the debris. In this contribution the basic principles of NRTA are explained based on measurements performed at the time-of-flight facility GELINA installed at the EC-JRC-IRMM. In addition, the main systematic effects affecting the accuracy of the results are discussed, with a special emphasis on the variety in shape and size of the particle like debris samples. To verify the impact of the particle size distribution various analytical models have been compared and validated by results of both stochastic numerical calculations and NRTA experiments at GELINA. Results of a preliminary analysis of the experimental data are presented.
使用言語 : English
掲載資料名 : Proceedings of INMM 54th Annual Meeting (CD-ROM)
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ページ数 : 7 Pages
発行年月 : 2013/07
出版社名 :
発表会議名 : INMM 54th Annual Meeting
開催年月 : 2013/07
開催都市 : Palm Desert
開催国 : U. S. A.
特許データ :
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論文URL :
キーワード : no keyword
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広報プレスリリース :
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 : EC/JRC/IRMM
 
登録番号 : BB20130884
抄録集掲載番号 : 42000099
論文投稿番号 : 13639
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