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Title: Criticality Potential of Waste Packages Containing DOE SNF Affected by Igneous Intrusion

Abstract

The Department of Energy (DOE) is currently preparing an application to submit to the U.S. Nuclear Regulatory Commission for a construction authorization for a monitored geologic repository. The repository will contain spent nuclear fuel (SNF) and defense high-level waste (DHLW) in waste packages placed in underground tunnels, or drifts. The primary objective of this paper is to perform a criticality analysis for waste packages containing DOE SNF affected by a disruptive igneous intrusion event in the emplacement drifts. The waste packages feature one DOE SNF canister placed in the center and surrounded by five High-Level Waste (HLW) glass canisters. The effective neutron multiplication factor (k{sub eff}) is determined for potential configurations of the waste package during and after an intrusive igneous event. Due to the complexity of the potential scenarios following an igneous intrusion, finding conservative and bounding configurations with respect to criticality requires some additional considerations. In particular, the geometry of a slumped and damaged waste package must be examined, drift conditions must be modeled over a range of parameters, and the chemical degradation of DOE SNF and waste package materials must be considered for the expected high temperatures. The secondary intent of this calculation is to present amore » method for selecting conservative and bounding configurations for a wide range of end conditions.« less

Authors:
;
Publication Date:
Research Org.:
Yucca Mountain Project, Las Vegas, Nevada
Sponsoring Org.:
USDOE
OSTI Identifier:
893931
Report Number(s):
NA
MOL.20060711.0199, DC# 46889; TRN: US0700080
DOE Contract Number:
NA
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS; CONSTRUCTION; CONTAINERS; CRITICALITY; GEOMETRY; GLASS; MULTIPLICATION FACTORS; NEUTRONS; NUCLEAR FUELS; POSITIONING; WASTES

Citation Formats

D.S. Kimball, and C.E. Sanders. Criticality Potential of Waste Packages Containing DOE SNF Affected by Igneous Intrusion. United States: N. p., 2006. Web. doi:10.2172/893931.
D.S. Kimball, & C.E. Sanders. Criticality Potential of Waste Packages Containing DOE SNF Affected by Igneous Intrusion. United States. doi:10.2172/893931.
D.S. Kimball, and C.E. Sanders. Tue . "Criticality Potential of Waste Packages Containing DOE SNF Affected by Igneous Intrusion". United States. doi:10.2172/893931. https://www.osti.gov/servlets/purl/893931.
@article{osti_893931,
title = {Criticality Potential of Waste Packages Containing DOE SNF Affected by Igneous Intrusion},
author = {D.S. Kimball and C.E. Sanders},
abstractNote = {The Department of Energy (DOE) is currently preparing an application to submit to the U.S. Nuclear Regulatory Commission for a construction authorization for a monitored geologic repository. The repository will contain spent nuclear fuel (SNF) and defense high-level waste (DHLW) in waste packages placed in underground tunnels, or drifts. The primary objective of this paper is to perform a criticality analysis for waste packages containing DOE SNF affected by a disruptive igneous intrusion event in the emplacement drifts. The waste packages feature one DOE SNF canister placed in the center and surrounded by five High-Level Waste (HLW) glass canisters. The effective neutron multiplication factor (k{sub eff}) is determined for potential configurations of the waste package during and after an intrusive igneous event. Due to the complexity of the potential scenarios following an igneous intrusion, finding conservative and bounding configurations with respect to criticality requires some additional considerations. In particular, the geometry of a slumped and damaged waste package must be examined, drift conditions must be modeled over a range of parameters, and the chemical degradation of DOE SNF and waste package materials must be considered for the expected high temperatures. The secondary intent of this calculation is to present a method for selecting conservative and bounding configurations for a wide range of end conditions.},
doi = {10.2172/893931},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Feb 07 00:00:00 EST 2006},
month = {Tue Feb 07 00:00:00 EST 2006}
}

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