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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.
Kenji Motojima, Enzo Tachikawa, Hideo Kamiyama
Nuclear Technology | Volume 42 | Number 2 | February 1979 | Pages 172-179
Technical Paper | Thorium Fuel Cycle in a Breeder Economy / Chemical Processing | doi.org/10.13182/NT79-A32148
Articles are hosted by Taylor and Francis Online.
Cobalt ion in a flowing solution was adsorbed onto the oxine-impregnated activated charcoal in a column. The initial rate of adsorption, K. Am, is influenced by either the flow rate or the ion concentration of a feed solution. The rate increases with a decrease in the concentration of the ion. However, with a solution of <0.06 μg.ml-1 of the ion, the adsorption rate tends to be constant at 0.90 ± 0.06 min-1. A relation between feed application time and column depth (bed depth/service time) has been determined that qualitatively agrees with that obtained from a theoretical calculation. Feed application time for different concentrations and flow rates of feed solutions can be predicted by the bed depth/ service time relation with a limited accuracy.