DOE OSTI · 1597306
The document outlines procedures and priorities for Radiation Protection personnel response should a nuclear criticality accident occur.
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Stueve, Robert Wayne. 2020-01-29. Criticality Accident Response. https://doi.org/10.2172/1597306
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Implementing 230 Th- 234 U radiochronometry of environmental uranium particles by large geometry secondary ion mass spectrometry (LG-SIMS) requires assessment, validation, and technical support before safeguards conclusions can be drawn from the information. This project investigates the most challenging aspects of LG-SIMS particle radiochronometry 230 Th- 234 U measurements through a collaboration between LANL and NIST, to provide best practices and procedures for determining high quality ages with optimized uncertainties. This includes exploration of reducing detector backgrounds, investigating the best ways to report uncertainties, and establishing recommended instrument setups.
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