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Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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Fusion Science and Technology
Latest News
The RAIN scale: A good intention that falls short
Radiation protection specialists agree that clear communication of radiation risks remains a vexing challenge that cannot be solved solely by finding new ways to convey technical information.
Earlier this year, an article in Nuclear News described a new radiation risk communication tool, known as the Radiation Index, or, RAIN (“Let it RAIN: A new approach to radiation communication,” NN, Jan. 2025, p. 36). The authors of the article created the RAIN scale to improve radiation risk communication to the general public who are not well-versed in important aspects of radiation exposures, including radiation dose quantities, units, and values; associated health consequences; and the benefits derived from radiation exposures.
Kenzo Munakata, Satoshi Yamatsuki, Yoshihiro Yokoyama, Seigo Kanjo, Dmitri Ianovski, Yamato Asakura, Tatsuhiko Uda
Fusion Science and Technology | Volume 41 | Number 3 | May 2002 | Pages 1059-1063
Blanket Material and Process | Proceedings of the Sixth International Conference on Tritium Science and Technology Tsukuba, Japan November 12-16, 2001 | doi.org/10.13182/FST02-A22746
Articles are hosted by Taylor and Francis Online.
Catalytic oxidation and adsorption is conventional and reliable method for the detritiation of air in the working area of fusion power plants. Most commercial catalysts widely used for oxidation are fabricated using alumina substrates. However, in terms of the adsorption for tritiated water vapors, zeolites could have better performance. Thus, the authors conducted test fabrication of noble metal catalysts of which substrates are A-type zeolites and examined their catalytic performance for the oxidation of hydrogen and methane. The results indicate that these newly developed catalysts have excellent catalytic activity for the oxidation of hydrogen and their performance exceeds or is comparable to that of commercial Pd/alumina catalysts. Furthermore, it was also found that these catalysts have lower catalytic activity for the oxidation of methane compared with the commercial Pd/alumina catalysts. This result reveals a possibility that these catalysts can be utilized for the selective oxidation of molecular tritium and tritiated methane, which could be useful for monitoring of environmental tritium.