Scenario evolution: Interaction between event tree construction and numerical analyses

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Description

Construction of well-posed scenarios for the range of conditions possible at any proposed repository site is a critical first step to assessing total system performance. Event tree construction is the method that is being used to develop potential failure scenarios for the proposed nuclear waste repository at Yucca Mountain. An event tree begins with an initial event or condition. Subsequent events are listed in a sequence, leading eventually to release of radionuclides to the accessible environment. Ensuring the validity of the scenarios requires iteration between problems constructed using scenarios contained in the event tree sequence, experimental results, and numerical analyses. ... continued below

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11 p.

Creation Information

Barr, G.E.; Barnard, R.W.; Dockery, H.A.; Dunn, E. & MacIntyre, A.T. December 31, 1990.

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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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  • Sandia National Laboratories
    Publisher Info: Sandia National Labs., Albuquerque, NM (United States)
    Place of Publication: Albuquerque, New Mexico

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Description

Construction of well-posed scenarios for the range of conditions possible at any proposed repository site is a critical first step to assessing total system performance. Event tree construction is the method that is being used to develop potential failure scenarios for the proposed nuclear waste repository at Yucca Mountain. An event tree begins with an initial event or condition. Subsequent events are listed in a sequence, leading eventually to release of radionuclides to the accessible environment. Ensuring the validity of the scenarios requires iteration between problems constructed using scenarios contained in the event tree sequence, experimental results, and numerical analyses. Details not adequately captured within the tree initially may become more apparent as a result of analyses. To illustrate this process, the authors discuss the iterations used to develop numerical analyses for PACE-90 (Performance Assessment Calculational Exercises) using basaltic igneous activity and human-intrusion event trees.

Physical Description

11 p.

Notes

INIS; OSTI as DE91005446

Source

  • 2. annual American Nuclear Society (ANS) international high level radioactive waste management conference, Las Vegas, NV (United States), 28 Apr - 3 May 1991

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  • Other: DE91005446
  • Report No.: SAND--90-2101C
  • Report No.: CONF-910435--25
  • Grant Number: AC04-76DP00789
  • Office of Scientific & Technical Information Report Number: 137982
  • Archival Resource Key: ark:/67531/metadc620699

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  • December 31, 1990

Added to The UNT Digital Library

  • June 16, 2015, 7:43 a.m.

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  • April 14, 2016, 12:39 p.m.

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Barr, G.E.; Barnard, R.W.; Dockery, H.A.; Dunn, E. & MacIntyre, A.T. Scenario evolution: Interaction between event tree construction and numerical analyses, article, December 31, 1990; Albuquerque, New Mexico. (digital.library.unt.edu/ark:/67531/metadc620699/: accessed September 22, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.