Analysis of samples collected in PCV interior of Fukushima Daiichi NPP, 6; Use of analysis results of collected samples toward fuel debris retrieval

Kurata, Masaki ; Madokoro, Hiroshi ; Okumura, Keisuke ; Sato, Ikken ; Mizokami, Masato*; Ito, Kenichi*; Mizokami, Shinya*

Based on the analysis of the samples collected in the PCV interior of Fukushima Daiichi NPP, potential issues regarding the fuel debris retrieval are summarized. The analytical targets, analytical method and obtainable knowledge that are necessary to evaluate each issue are discussed. Valuable information can be obtained even from small samples to understand the current situation of the plant and the accident progression. Although the amount of collectable samples is limited, we considered how to evaluate the whole fuel debris and how to utilize the analytical results for recriticality, burnup and safety issues.

Language	:	Japanese
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Meeting title	:	日本原子力学会2019年秋の大会
Held date	:	2019/09
Location (city)	:	富山
Location (country)	:	日本
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Keywords	:	福島第一原子力発電所事故; デブリ取り出し; 試料分析; 試料の代表性; デブリの非均質性; Fukushima Daiichi Nuclear Power Station Accident
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Registration No. : BB20191053
JAEA Abstracts No. :
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