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Conference Spotlight
Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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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.
M. V. Gregory, H. C. Honeck
Nuclear Science and Engineering | Volume 61 | Number 3 | November 1976 | Pages 437-445
Technical Note | doi.org/10.13182/NSE76-A26932
Articles are hosted by Taylor and Francis Online.
Control algorithms for power-shaping calculations and critical rod bank position searches are described. The algorithms allow a flux computation module using a finite difference solution of the few-group neutron diffusion equations with coarse-mesh rebalancing to be directly extended to control calculations. The control algorithms are formulated as an extension of the standard critical buckling search by recasting the procedure for calculating the eigenvalue. A comparison of the power-shaping calculation with an equivalent keff calculation demonstrates that the former requires approximately the same number of outer iterations as the latter.