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Sensitivity Analysis on Safety Functions of Engineered and Natural Barriers for Fuel Debris Disposal

Published online by Cambridge University Press:  16 January 2017

Taro Shimada ,
Yuki Nishimura  and
Seiji Takeda
Taro Shimada*
Affiliation:
Nuclear Safety Research Center, Japan Atomic Energy Agency, 2-4 Shirakata, Tokai-mura, Ibaraki, 3191195, JAPAN.
Yuki Nishimura
Affiliation:
Nuclear Safety Research Center, Japan Atomic Energy Agency, 2-4 Shirakata, Tokai-mura, Ibaraki, 3191195, JAPAN.
Seiji Takeda
Affiliation:
Nuclear Safety Research Center, Japan Atomic Energy Agency, 2-4 Shirakata, Tokai-mura, Ibaraki, 3191195, JAPAN.
*
*(Email: shimada.taro@jaea.go.jp)
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Abstract

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 located in reactor containment vessels have not yet been obtained. In order to investigate the safety function of barriers required for disposal of fuel debris, sensitivity analysis for radionuclide migration was 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 14C and 129I during release to groundwater, in addition to 238U.

Keywords

waste managementnuclear materialsradiation effects
Type
Articles
Information
MRS Advances , Volume 2 , Issue 12: Scientific Basis for Nuclear Waste Management XL , 2017 , pp. 687 - 692
Copyright
Copyright © Materials Research Society 2017 

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References

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