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DOE OSTI · 3376035

Unattended Monitoring of Uranium Holdup with Scintillating Fibers

Chichester, David L. [Idaho National Laboratory (INL), Idaho Falls, ID (United States)] (ORCID:0000000285114458)·Hix, Jay D. [Idaho National Laboratory (INL), Idaho Falls, ID (United States)] (ORCID:0000000214160465)·Johnson, James T. [Idaho National Laboratory (INL), Idaho Falls, ID (United States)] (ORCID:0000000234344413)·Watson, Scott M. [Idaho National Laboratory (INL), Idaho Falls, ID (United States)]·Daw, Melissa J. [Idaho National Laboratory (INL), Idaho Falls, ID (United States)] (ORCID:0009000286089802)·Vega-Galaviz, Alexis [Idaho National Laboratory (INL), Idaho Falls, ID (United States)] (ORCID:0009000273389363)·Thompson, Scott J. [Idaho National Laboratory (INL), Idaho Falls, ID (United States)] (ORCID:0000000321531161)
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Abstract

This work evaluated the use of scintillating fiber (SciFi) radiation sensors as a cost-effective, unattended monitoring technique for uranium holdup accumulation in reprocessing equipment. With ruggedized packaging and an outer diameter of less than 1 cm, scintillating fibers offer deployment flexibility. Additionally, plastic scintillating fibers coupled with standard optical fibers provide an affordable option to monitor locations kilometers away from a localized control room or data acquisition (DAQ) system. These combinations of characteristics along with their relatively low manufacturing costs make scintillating fibers ideal for installation at key measurement points such as pipes, valves, and filtration systems.

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46 - INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY98 NUCLEAR DISARMAMENT, SAFEGUARDS, AND PHYSICAL PROTECTIONHoldupSafeguardsscintillation fibers

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Chichester, David L. [Idaho National Laboratory (INL), Idaho Falls, ID (United States)] (ORCID:0000000285114458), Hix, Jay D. [Idaho National Laboratory (INL), Idaho Falls, ID (United States)] (ORCID:0000000214160465), Johnson, James T. [Idaho National Laboratory (INL), Idaho Falls, ID (United States)] (ORCID:0000000234344413), Watson, Scott M. [Idaho National Laboratory (INL), Idaho Falls, ID (United States)], Daw, Melissa J. [Idaho National Laboratory (INL), Idaho Falls, ID (United States)] (ORCID:0009000286089802), Vega-Galaviz, Alexis [Idaho National Laboratory (INL), Idaho Falls, ID (United States)] (ORCID:0009000273389363), Thompson, Scott J. [Idaho National Laboratory (INL), Idaho Falls, ID (United States)] (ORCID:0000000321531161). 2025-09-01. Unattended Monitoring of Uranium Holdup with Scintillating Fibers. https://doi.org/10.2172/3376035

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