Rethinking regulations for disposal criticality

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This paper provides the basis for the position that the current U.S. Nuclear Regulatory Commission (NRC) criticality regulation is in need of revision to address problems in implementing it for the postclosure period in a geologic high-level waste repository. The authors believe that the applicant for such a facility should be able to demonstrate that postulated postclosure criticality events will not cause unacceptable risk of deleterious effects on public health and safety. In addition, the applicant should be expected to take practical and feasible measures to reduce the probability of a criticality occurring, even if (as expected) the consequences of ... continued below

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9 p.

Creation Information

Scott, M. & Doering, T. August 1, 1997.

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This article is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. More information about this article can be viewed below.

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Authors

  • Scott, M. Duke Engineering and Services, Inc., Las Vegas, NV (United States)
  • Doering, T. Framatome Cogema Fuels, Las Vegas, NV (United States)

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  • TRW Inc.
    Place of Publication: Fairfax, Virginia

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Description

This paper provides the basis for the position that the current U.S. Nuclear Regulatory Commission (NRC) criticality regulation is in need of revision to address problems in implementing it for the postclosure period in a geologic high-level waste repository. The authors believe that the applicant for such a facility should be able to demonstrate that postulated postclosure criticality events will not cause unacceptable risk of deleterious effects on public health and safety. In addition, the applicant should be expected to take practical and feasible measures to reduce the probability of a criticality occurring, even if (as expected) the consequences of such a criticality for repository performance and public health and safety would be negligible. This approach, while recognizing the probabilistic nature of analyses of events and conditions in the distant future, is also arguably consistent with the defense in depth concept that has been successfully applied to nuclear reactor regulation. The authors believe regulations for postclosure criticality control should support this dual approach, rather than require a deterministic prohibition of criticality as does the current rule. The existing rule seems appropriate for the preclosure period, as long as it is clearly specified to apply only to that period.

Physical Description

9 p.

Notes

INIS; OSTI as DE97008396

Source

  • American Nuclear Society (ANS) topical meeting on criticality safety challenges in the next decade, Chelan, WA (United States), 7-11 Sep 1997

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  • Other: DE97008396
  • Report No.: CONF-970926--15
  • Grant Number: AC01-91RW00134
  • Office of Scientific & Technical Information Report Number: 522222
  • Archival Resource Key: ark:/67531/metadc696566

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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Creation Date

  • August 1, 1997

Added to The UNT Digital Library

  • Aug. 14, 2015, 8:43 a.m.

Description Last Updated

  • April 10, 2018, 2:55 p.m.

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Scott, M. & Doering, T. Rethinking regulations for disposal criticality, article, August 1, 1997; Fairfax, Virginia. (digital.library.unt.edu/ark:/67531/metadc696566/: accessed October 18, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.