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Title: License Application Design Selection Feature Report: Waste Package Self Shielding Design Feature 13

Abstract

In the Viability Assessment (VA) reference design, handling of waste packages (WPs) in the emplacement drifts is performed remotely, and human access to the drifts is precluded when WPs are present. This report will investigate the feasibility of using a self-shielded WP design to reduce the radiation levels in the emplacement drifts to a point that, when coupled with ventilation, will create an acceptable environment for human access. This provides the benefit of allowing human entry to emplacement drifts to perform maintenance on ground support and instrumentation, and carry out performance confirmation activities. More direct human control of WP handling and emplacement operations would also be possible. However, these potential benefits must be weighed against the cost of implementation, and potential impacts on pre- and post-closure performance of the repository and WPs. The first section of this report will provide background information on previous investigations of the self-shielded WP design feature, summarize the objective and scope of this document, and provide quality assurance and software information. A shielding performance and cost study that includes several candidate shield materials will then be performed in the subsequent section to allow selection of two self-shielded WP design options for further evaluation. Finally, themore » remaining sections will evaluate the impacts of the two WP self-shielding options on the repository design, operations, safety, cost, and long-term performance of the WPs with respect to the VA reference design.« less

Authors:
Publication Date:
Research Org.:
Yucca Mountain Project, Las Vegas, Nevada (US)
Sponsoring Org.:
US Department of Energy (US)
OSTI Identifier:
752783
Report Number(s):
B00000000-01717-2200-00220, Rev. 00
MOL.19990311.0177, DC# 20869; TRN: US0301874
DOE Contract Number:  
AC08-91RW00134
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: 10 Mar 2000; PBD: 10 Mar 2000
Country of Publication:
United States
Language:
English
Subject:
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS; 12 MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; DESIGN; ENZYMES; IMPLEMENTATION; LICENSE APPLICATIONS; PHOTOREACTIVATION; POSITIONING; QUALITY ASSURANCE; RADIATIONS; SAFETY; SHIELDING; VENTILATION; VIABILITY; WASTES

Citation Formats

Tang, J.S. License Application Design Selection Feature Report: Waste Package Self Shielding Design Feature 13. United States: N. p., 2000. Web.
Tang, J.S. License Application Design Selection Feature Report: Waste Package Self Shielding Design Feature 13. United States.
Tang, J.S. Fri . "License Application Design Selection Feature Report: Waste Package Self Shielding Design Feature 13". United States. https://www.osti.gov/servlets/purl/752783.
@article{osti_752783,
title = {License Application Design Selection Feature Report: Waste Package Self Shielding Design Feature 13},
author = {Tang, J.S.},
abstractNote = {In the Viability Assessment (VA) reference design, handling of waste packages (WPs) in the emplacement drifts is performed remotely, and human access to the drifts is precluded when WPs are present. This report will investigate the feasibility of using a self-shielded WP design to reduce the radiation levels in the emplacement drifts to a point that, when coupled with ventilation, will create an acceptable environment for human access. This provides the benefit of allowing human entry to emplacement drifts to perform maintenance on ground support and instrumentation, and carry out performance confirmation activities. More direct human control of WP handling and emplacement operations would also be possible. However, these potential benefits must be weighed against the cost of implementation, and potential impacts on pre- and post-closure performance of the repository and WPs. The first section of this report will provide background information on previous investigations of the self-shielded WP design feature, summarize the objective and scope of this document, and provide quality assurance and software information. A shielding performance and cost study that includes several candidate shield materials will then be performed in the subsequent section to allow selection of two self-shielded WP design options for further evaluation. Finally, the remaining sections will evaluate the impacts of the two WP self-shielding options on the repository design, operations, safety, cost, and long-term performance of the WPs with respect to the VA reference design.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2000},
month = {3}
}

Technical Report:

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