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DOE OSTI · 1649177

Subcritical Multiplication Ex-Core Calculations with Shift

Royston, Katherine·Pandya, Tara
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Abstract

This report details the development and testing of Virtual Environment for Reactor Applications (VERA) as applied to full core subcritical multiplication ex-core calculations with Shift. The limiting factor in being able to run these detector calculations with Monte Carlo is the amount of computational memory used by a fully-loaded full core problem. The main development features added to VERA in this effort were enabling source biasing and separable weight windows and integrating multithreading in Shift. With these capabilities, a subcritical multiplication detector response calculation on a full core Watts Bar Nuclear Plant Unit 1 (WBN1) ex-core model was successfully run on a moderately sized computing cluster.

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Royston, Katherine, Pandya, Tara. 2020-05-12. Subcritical Multiplication Ex-Core Calculations with Shift. https://doi.org/10.2172/1649177

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