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4 October 2022 Decontamination of tritium-exposed ion chambers using ultraviolet LEDs (Conference Presentation)
George K. Larsen
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Proceedings Volume PC12201, UV and Higher Energy Photonics: From Materials to Applications 2022; PC1220107 (2022) https://doi.org/10.1117/12.2633715
Event: SPIE Nanoscience + Engineering, 2022, San Diego, California, United States
Abstract
Ion chambers are used to measure the gas phase concentration of tritium, a radioactive hydrogen isotope. However, tritiated surface contamination regularly forms on ion chamber surfaces due to isotope exchange between tritium in the ambient with protium on the surface. This creates a large background signal which impedes low level measurement. Ion chambers may be periodically cleaned to reduce the background, but in tritium processing environments this increases risks of exposure to radiation and ion chamber breakage. In this report we describe the use of ultraviolet (UV) LED light illumination as means to decontaminate ion chambers in a safe, hand-free manner.
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© (2022) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
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George K. Larsen "Decontamination of tritium-exposed ion chambers using ultraviolet LEDs (Conference Presentation)", Proc. SPIE PC12201, UV and Higher Energy Photonics: From Materials to Applications 2022, PC1220107 (4 October 2022); https://doi.org/10.1117/12.2633715
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KEYWORDS
Ions
Ultraviolet radiation
Light emitting diodes
Phase measurement
Ultraviolet light emitting diodes
Contamination
Gold
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