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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.
Hugo van Dam
Nuclear Science and Engineering | Volume 158 | Number 3 | March 2008 | Pages 284-288
Technical Paper | doi.org/10.13182/NSE08-A2754
Articles are hosted by Taylor and Francis Online.
Two models for criticality wave systems are presented, distinguished by the coolant flow direction with respect to the wave propagation direction, namely, an upstream wave (UW) model and a downstream wave (DW) model. It is shown that in the DW case the reactor power and wave velocity are considerably lower than those in the UW case, but the burnup is much higher.
