Hostname: page-component-cd9895bd7-dk4vv Total loading time: 0 Render date: 2024-12-29T13:57:07.478Z Has data issue: false hasContentIssue false
  • English
  • Français

Application of a Comprehensive Sensitivity Analysis Method on the Safety Assessment of TRU Waste Disposal in JAPAN

Published online by Cambridge University Press:  19 October 2011

Takao Ohi ,
Hiroyasu Takase ,
Manabu Inagaki ,
Kiyoshi Oyamada ,
Tomoyuki Sone ,
Morihiro Mihara ,
Takeshi Ebashi  and
Kunihiko Nakajima
Takao Ohi
Affiliation:
ohi.takao@jaea.go.jp, JAPAN ATOMIC ENERGY AGENCY, Geological Isolation Research and Development Directorate, 4-33 Muramatsu Tokai-mura, Naka-gun Ibaraki-ken, 319-1194, Japan
Hiroyasu Takase
Affiliation:
htakase@quintessa.co.jp, Quintessa K. K, Queen's Tower A 7-707, 2-3-1 Minatomirai Nishi-ku, Yokohama, Kanagawa-ken, 220-6007, Japan
Manabu Inagaki
Affiliation:
inagaki.manabu@jaea.go.jp, JAEA, 4-33 Muramatsu, Tokai-mura, Ibaraki-ken, 319-1194, Japan
Kiyoshi Oyamada
Affiliation:
oyamada.kiyoshi@jgc.co.jp, JGC Corporation, 2-3-1 Minatomirai Nishi-ku, Yokohama, Kanagawa-ken, 220-6001, Japan
Tomoyuki Sone
Affiliation:
sone.tomoyuki@jaea.go.jp, JAEA, 4-33 Muramatsu, Tokai-mura, Ibaraki-ken, 319-1194, Japan
Morihiro Mihara
Affiliation:
mihara.morihiro@jaea.go.jp, JAEA, 4-33 Muramatsu, Tokai-mura, Ibaraki-ken, 319-1194, Japan
Takeshi Ebashi
Affiliation:
ebashi.takeshi@jaea.go.jp, JAEA, 4-33 Muramatsu, Tokai-mura, Ibaraki-ken, 319-1194, Japan
Kunihiko Nakajima
Affiliation:
nakajima.kunihiko@jaea.go.jp, NESI Inc., 4-33 Muramatsu, Tokai-mura, Ibaraki-ken, 319-1112, Japan
Get access

Abstract

A comprehensive sensitivity analysis method has been developed with the aim of providing quantitative information in an efficient manner. This methodology is composed of the following two components: (1) a statistical method with random sampling of independent parameters, which identifies important parameters and extracts threshold values of parameters and/or combinations yielding a 'successful condition' where maximum dose does not exceed a target value, (2) A nuclide migration model that as far as possible incorporates a comprehensive set of phenomena occurring within the repository. This approach was applied as part of a safety assessment of the geological disposal of TRU waste in Japan (TRU-2). It was shown that the concept of TRU waste disposal is robust from the point of view of safety.

Keywords

simulationwaste managementwaste management
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 985: Symposium NN – Scientific Basis for Nuclear Waste Management XXX , 2006 , 0985-NN03-21
Copyright
Copyright © Materials Research Society 2007

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1. OECD/NEA, Review of Safety Assessment Methods, ISBN 92–64–13493–X, p.62 (1991).Google Scholar
2. OECD/NEA, Post-Closure Safety Case for Geological Repositories Nature and Purpose, ISBN 92–64–02075–6, p.25 (2004).Google Scholar
3. JNC, H12: JNC TN1410 2000–001, p.V–31 (2000).Google Scholar
4. Nagra, Technical Report 02–05, p.257–313, (2002).Google Scholar
5. Ghosh, S. T., Dr. Thesis, Risk-Informing Decisions about High-Level Nuclear Waste Repositories, Massachusetts Institute of Technology, p 125, (2004).Google Scholar
6. Ooi, T., Sone, T., Inagaki, M. and Mihara, M., “Extraction of Successful Conditions for Safety Geological Disposal of TRU Waste using a Panoramic Sensitivity Analysis Approach”, JNC TN1340 2004–004, p69–p84 (2004) [in Japanese].Google Scholar
7. FEPC & JNC, Second Progress Report on Research and Development for TRU Waste Disposal in Japan -Repository Design, Safety Assessment and Means of Implementation in the Generic Phase-, (2007) (in preparation).Google Scholar
8. Takase, H., Grindrod, P., Einchcomb, S. J., Lee, A. J., Makino, H. and Umeki, H., “On EBS Modelling for Performance Assessment: Using Shadow Models to Identify Robust System Responses”, Mat. Res. Soc. Symp. Proc. Vol.506, p847–856 (1998).Google Scholar
9. Mihara, M., Ooi, T., “Development of TIGER Code for Radionuclide Transport in a Geochemically Evolving Region” JNC TN1340 2003–006, p 27–38 (2003) [in Japanese].Google Scholar
10. JNC, H12: JNC TN1410 2000- 004, p.VI-46-VI-50, VI-87, (2000).Google Scholar