Initial dynamic photoactive materials testing of an atmospheric chamber intended for radioactive and hazardous gases

Journal Article · 22 November 2023 · MRS Advances

DOI: https://doi.org/10.1557/s43580-023-00708-w · OSTI ID:2228268

Smith, Nathaniel ^[1]; Hubbard, Lance  ^[1]; Lonsway, Maurice ^[1]; Wahl, Jon ^[1]; Henson, Neil ^[2]

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1. Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
2. Pacific Northwest National Laboratory (PNNL), Richland, WA (United States); Washington State University, Pullman, WA (United States)

Radioisotopes and hazardous gases can have undetermined environmental pathways. Researchers at Pacific Northwest National Laboratory constructed a chamber that complies with the requirements needed for an atmospheric reaction platform and the safety principles of interacting with hazardous dispersible sources to enable the environmental testing of these gases. Initial dynamic testing showed inter-chamber mixing completed from minutes to 1.5 hours. The photooxidation of butyl iodine showed the presence of signals from reaction products, and intermediaries for up to 50 hours. Current detection limits of the chamber and analytical collection and testing approach were shown to be in the single-digit parts per billion levels. In conclusion, the comparisons between the measured oxidation trends and literature show the utility of performing laboratory experiments to validate the results of modeling for larger-scale scenarios.

• Research Organization: Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
• Sponsoring Organization: USDOE
• Grant/Contract Number: AC05-76RL01830
• OSTI ID: 2228268
• Report Number(s): PNNL-SA-186294
• Journal Information: MRS Advances, Vol. 8, Issue 19; ISSN 2059-8521
• Publisher: Springer NatureCopyright Statement
• Country of Publication: United States
• Language: English