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Conference Spotlight
Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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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.
J. Kim, L. D. Stewart
Fusion Science and Technology | Volume 8 | Number 1 | July 1985 | Pages 1717-1721
Plasma Heating, Impurity Control, and Fueling | Proceedings of the Sixth Topical Meeting on the Technology of Fusion Energy (San Francisco, California, March 3-7, 1985) | doi.org/10.13182/FST85-A40008
Articles are hosted by Taylor and Francis Online.
The angular intensity profile of a single beamlet is expressed as a sum of a main Gaussian and a bump-on-the-tail representing the optical aberration. Transmission of a total beam comprised of a large number of beamlets is then analytically derived. By an iterative matching of the calculated transmissions to the measured transmissions through at least two downstream openings, the parameters that describe the single beamlet angular profile are determined. Some of the neutral beam injectors employed for heating fusion plasmas are characterized by this modeling. Also presented is an improved algorithm for calculating the intensity distribution at a downstream plane.