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2025 ANS Winter Conference & Expo
November 9–12, 2025
Washington, DC|Washington Hilton
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Researchers use one-of-a-kind expertise and capabilities to test fuels of tomorrow
At the Idaho National Laboratory Hot Fuel Examination Facility, containment box operator Jake Maupin moves a manipulator arm into position around a pencil-thin nuclear fuel rod. He is preparing for a procedure that he and his colleagues have practiced repeatedly in anticipation of this moment in the hot cell.
Wenyu Cheng, Jie Liang, Mingjun Zhang, Fei Wei, Jinglin Li, Xiaochong Xue, Youshi Zeng, Ke Deng, Qin Zhang, Wei Liu
Nuclear Science and Engineering | Volume 197 | Number 7 | July 2023 | Pages 1534-1544
Technical Paper | doi.org/10.1080/00295639.2022.2158020
Articles are hosted by Taylor and Francis Online.
Large amounts of tritium will inevitably be produced during operation from the Thorium Molten Salt Reactor (TMSR) fueled by lithium salt, which is detrimental to the human body. Therefore, it is necessary to evaluate the radiation dose of the generated tritium. The tritium production, emission, and radiation dose of TMSRs were estimated by numerical calculation. According to this study, a 2-MW(thermal) TMSR produces 3.33E+14 Bq·yr−1 of tritium, discharges 2.42E+13 Bq·yr−1 of tritium, and causes 1.06 μSv·yr−1 of radiation dose. A 30-MW(thermal) TMSR produces 5.00E+15 Bq·yr−1 of tritiu.m, discharges 3.62E+14 Bq·yr−1 of tritium, and causes 2.02 μSv·yr−1 of radiation dose. A 2250-MW(thermal) TMSR produces 3.75E+17 Bq·yr−1 of tritium, discharges 2.77E+16 Bq·yr−1 of tritium, and causes 79 μSv·yr−1 of radiation dose. The radiation dose of TMSRs is much less than 1 mSv·yr−1, which is the dose limit for internal recruitment in China. It is determined that TMSRs are safe for humans regarding tritium hazard.