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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.
Feroz Ahmed, Rajesh Mohan
Nuclear Science and Engineering | Volume 51 | Number 3 | July 1973 | Pages 335-337
Technical Note | doi.org/10.13182/NSE73-A26611
Articles are hosted by Taylor and Francis Online.
The multigroup diffusion equation has been solved by taking buckling to be energy dependent. This form of the solution has been justified in the paper. It has two distinct advantages: (a) the decay constant values so obtained are closer to the experimental results as compared to the ones obtained by taking constant buckling, and (b) it gives a decay constant dependent on the shape of the assembly.
