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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.
Weston M. Stacey, Jr.
Nuclear Science and Engineering | Volume 49 | Number 2 | October 1972 | Pages 213-227
Technical Paper | doi.org/10.13182/NSE72-A35508
Articles are hosted by Taylor and Francis Online.
Variational expressions are presented for the estimation of the parameters of the adiabatic neutron kinetics model. The accuracy and limit of applicability of these variational estimates is established for liquid metal fast breeder reactor (LMFBR) applications by an extensive numerical study. An extended reactivity-table model, in which the mutual interaction of the different perturbations is treated on the basis of the variational estimates, is developed which is comparable in accuracy to the adiabatic model for a wide range of LMFBR transients.
