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Nuclear Criticality Calculations for Canister-Based Facilities- Commercial SNF

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Bechtel SAIC Company, LLC
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Abstract

The purpose of this calculation is to perform waste-form specific nuclear criticality safety calculations to aid in establishing criticality safety design criteria, and to identify design and process parameters that are potentially important to the criticality safety of the transportation, aging and disposal (TAD) canister-based systems.
It is intended that the results of the criticality safety calculations provided in this document will be used to support the criticality safety analysis of normal operations and off-normal conditions associated with the handling, transfer and emplacement of TAD canister-based systems in all surface and subsurface facilities, with the exception of the Initial Handling Facility (IHF) and pool operations in the Wet Handling Facility (WHF) (i.e. those operations involving the presence of pool water internal or external to the TAD canister). The criticality safety analysis is provided in Ref. 2.4.1. All off-normal conditions referred to in this document are considered potential end states o f category 1 and 2 event sequences.

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