Sensitivity analysis on safety functions of engineered and natural barriers for fuel debris disposal

Shimada, Taro ; Nishimura, Yuki; Takeda, Seiji

A disposal measure for fuel debris generated at the accident in the Fukushima Daiichi Nuclear Power Station has been studied so far. However, physical and chemical properties of the fuel debris have not yet investigated in reactor containment vessels. In order to investigate the safety function of barriers required for disposal of fuel debris, sensitivity analyses for radionuclide migration were carried out, considering with uncertainty of the properties. As a result, it is indicated that it was important for evaluation of fuel debris disposal to obtain the physical and chemical properties of $^{14}$ C and $^{129}$ I during release to groundwater, in addition to $^{238}$ U.

Language	:	English
Journal	:	MRS Advances (Internet)
Volume	:	2
Number	:	12
Pages	:	p.687 - 692
Publication Year/Month	:	2017/01
Meeting title	:	Materials Research Society 2016 Fall Meeting
Held date	:	2016/11
Location (city)	:	Boston
Location (country)	:	U.S.A.
Patent information	:
PDF	:
Paper URL	:	https://doi.org/10.1557/adv.2017.24
DOI for research data	:
Keywords	:	福島第一原子力発電所事故; 燃料デブリ; 地層処分; 感度解析; 瞬時放出; 溶解速度; Fukushima Daiichi Nuclear Power Station Accident
Research Facility	:
Press Release	:
Article of JAEA R&D Review	:
Cooperating Institute	:	原子力規制委員会原子力規制庁

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Registration No. : BB20161496
JAEA Abstracts No. : 45000605
Paper Submission No. : 18872

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