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規格・テクニカルリポート類

環境中のプルトニウムとアメリシウム; 知見と分析

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環境中のプルトニウムとアメリシウム; 知見と分析

Material type
規格・テクニカルリポート類
Author
中野 政尚ほか
Publisher
-
Publication date
1996-09
Material Format
Digital
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Note (General):

出版タイプ: NAA tool for meshing sphere arrangements was programmed in order to perform finite element calculations. Sphere arrangements are investigated i...

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A tool for meshing sphere arrangements was programmed in order to perform finite element calculations. Sphere arrangements are investigated in frame o...

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Digital

Material Type
規格・テクニカルリポート類
Author/Editor
中野 政尚
住谷 秀一
渡辺 均
片桐 裕実
赤津 康夫
飛田 和則
Publication Date
1996-09
Publication Date (W3CDTF)
1996
Alternative Title
Environmental Plutonium and Americium; Knowledge and Analysis
Periodical title
PNC TN8520 96-002
Target Audience
一般
Note (General)
出版タイプ: NA
A tool for meshing sphere arrangements was programmed in order to perform finite element calculations. Sphere arrangements are investigated in frame of the feasibility study of the sphere-pac nuclear fuel. One major concern of this study is the thermal conductivity of the arrangement. Further concerns are the mechanical behavior and sintering of the fuel. The thermal conductivity of the fuel was addressed with the computer code SPACON based on a unit cell approach and a radial heat flow experiment. However, a further approach using the finite element method is desirable, in order to better understanding the thermal flow through the package and to cross check with SPACON data and with experimental data. Also the mechanical behavior of the fuel could be addressed using the finite element technique.
この資料は、環境中プルトニウムとアメリシウムに関する知見とその分析法の二つの章から成る。第1章ではプルトニウムとアメリシウムの生成、特徴、核実験、使用済み燃料、廃棄物、環境試料についてのデータを示す。第2章では環境試料中の分析方法について説明している。分析の概略は大きく4つの工程、すなわち前処理、化学分離、電着、$\alpha$線測定から成る。初めにそれぞれの工程の原理を説明している。次に実際の環境試料の分析手順を示す。最後にSi検出器の校正と放射能の測定について示す。