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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.
Ya. I. Kolesnichenko, V. V. Lutsenko, Yu. V. Yakovenko
Fusion Science and Technology | Volume 25 | Number 3 | May 1994 | Pages 302-317
Technical Paper | Alpha-Particle Special / Plasma Engineering | doi.org/10.13182/FST94-A30286
Articles are hosted by Taylor and Francis Online.
The influence of sawtooth oscillations on the power of a tokamak reactor is investigated. Depending on the operation mode, the role of sawteeth can qualitatively be different. In particular, bursts of fusion power during and immediately after sawtooth crashes are predicted for the mode with a flat plasma density profile n(r) and a peaked ion temperature profile T(r) when T(0) > 16 keV. The main factor responsible for the effect of sawteeth on fusion power is the changes in the radial profiles of the plasma parameters caused by both the enhanced diffusion after a crash and the incomplete reconstruction of the n(r) and T(r) profiles between crashes.
