USE OF A STOCHASTIC MODEL TO EVALUATE UNCERTAINTY IN A PERFORMANCE ASSESSMENT AT THE SAVANNAH RIVER SITE - 8120

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A significant effort has recently been initiated to address probabilistic issues within radiological Performance Assessments (PA's) conducted at the Savannah River Site (SRS). This effort is considered to be part of a continual process, as is the program of PA analysis and maintenance across the Department of Energy (DOE) complex. At SRS, findings in the initial probabilistic analysis of the Slit Trenches in the E-Area PA were built upon and improved in the later development of the probabilistic model for the F-Area Tank Farm. Within the PA studies conducted at SRS, the initial effort of the uncertainty analyses was focused ... continued below

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Hiergesell, R & Glenn Taylor, G January 21, 2008.

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A significant effort has recently been initiated to address probabilistic issues within radiological Performance Assessments (PA's) conducted at the Savannah River Site (SRS). This effort is considered to be part of a continual process, as is the program of PA analysis and maintenance across the Department of Energy (DOE) complex. At SRS, findings in the initial probabilistic analysis of the Slit Trenches in the E-Area PA were built upon and improved in the later development of the probabilistic model for the F-Area Tank Farm. Within the PA studies conducted at SRS, the initial effort of the uncertainty analyses was focused on the Slit Trenches as part of the E-Area PA. Specifically, a probabilistic model was developed for Slit Trench 5 within the E-Area. This model was utilized in deterministic mode to compare its results against the 2- and 3-D model results of the deterministic models. Then, utilizing the PDFs, the model was used to perform multiple realizations and produce probabilistic results. Later, a second probabilistic sensitivity and uncertainty analysis was undertaken for the F-Area Tank Farm PA. This effort is currently underway. Many improvements were made in how the flow and transport processes were incorporated within this model.

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  • WASTE MANAGEMENT 08

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  • Report No.: WSRC-STI-2008-00033
  • Grant Number: DE-AC09-96SR18500
  • Office of Scientific & Technical Information Report Number: 922656
  • Archival Resource Key: ark:/67531/metadc902204

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  • January 21, 2008

Added to The UNT Digital Library

  • Sept. 27, 2016, 1:39 a.m.

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  • Dec. 12, 2016, 1:45 p.m.

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Hiergesell, R & Glenn Taylor, G. USE OF A STOCHASTIC MODEL TO EVALUATE UNCERTAINTY IN A PERFORMANCE ASSESSMENT AT THE SAVANNAH RIVER SITE - 8120, article, January 21, 2008; [Aiken, South Carolina]. (digital.library.unt.edu/ark:/67531/metadc902204/: accessed August 18, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.