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ANS webinar to focus on low-dose radiation risk
Join ANS on Thursday, January 21, at noon (ET) for a Q&A with an expert panel as they discuss how to communicate about the risk of low-dose radiation. “Talking About Low-dose Radiation Risk” is a free members-only event that serves as a follow-up to the “Risky Business” President’s Session that took place during the ANS Virtual Winter Meeting last November. The session will take a deeper dive into the many questions generated from the thought-provoking discussion.
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Taihyeop Lho, Yong-Sup Choi, HyonJae Park
Fusion Science and Technology | Volume 63 | Number 1 | May 2013 | Pages 106-110
dx.doi.org/10.13182/FST13-A16882
Articles are hosted by Taylor and Francis Online.
Hydrogen solubility of FLiNaK (LiF 46.5 mol% + NaF 11.5% + KF 42 mol%) were investigated with hydrogen plasma interaction. To use molten salt as liquid wall for fusion device, tritium retention property of the molten salt should be studied. Although there have been some reports on hydrogen solubility of FLiNaK, retention property of FLiNaK with hydrogen plasma interaction has not been reported yet. Hydrogen outgassing of molten FLiNaK was measured with RGA after interaction of hydrogen plasma. Hydrogen partial pressure of the RGA was calibrated with an H2 mass flow controller of 5sccm. Hydrogen plasma was generated with 500W ECR source and the molten FLiNaK was contained with heated crucible of diameter of 46mm and depth of 40mm. By measuring hydrogen ion density near the surface of FLiNaK, we evaluated dose of hydrogen to the FLiNaK and calculated retention percentage with measured outgassing amount of hydrogen. Compared to Henry's law, plasma-interacted-FLiNaK showed significantly large amount of hydrogen retention such as 10000 times.
