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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.
Motoyuki Nakamura, Makoto Ichimura, Katsuaki Sakata, Masamitsu Oikawa, Yuriko Ohta, Hidekazu Kano, Satoru Tanaka, Soshun Saosaki, Kiyoomi Kadoya, Toshiki Kawabata, Shinji Kobayashi, Hitoshi Hojo, Yousuke Nakashima, Tsuguhiro Watanabe, Kiyoshi Yatsu
Fusion Science and Technology | Volume 39 | Number 1 | January 2001 | Pages 339-342
Poster Presentations | doi.org/10.13182/FST01-A11963475
Articles are hosted by Taylor and Francis Online.
In the GAMMA10 tandem mirror, ion cyclotron range of frequency (ICRF) waves are effectively used for the plasma production and heating. Alfvén ion cyclotron (AIC) modes are spontaneously excited due to the strong heating. Stability boundary for the AIC modes is analyzed by introducing the effective mirror ratio. It is shown that the AIC modes become more unstable with smaller mirror ratio. The pitch angle scattering of the high energy ions due to the AIC mode are clearly observed.
