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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.
T. J. Walker
Nuclear Technology | Volume 23 | Number 2 | August 1974 | Page 189
Material | Nuclear Safeguards (Presented at November 1973 Meeting) | doi.org/10.13182/NT74-A31451
Articles are hosted by Taylor and Francis Online.
A quantitative strain-and-stress state criterion for failure has been developed which is applicable in the vicinity of sharp cracks. This criterion is applicable to any example which may be represented by finite element theory in the detail required to determine the strain-and-stress state for the crack tip region. The restriction of linear elastic fracture mechanics which defines a minimum crack length is removed, since the influence of the free boundary in the vicinity of the crack is included in the finite element solution. The development of the criterion includes an experimental base and demonstrates the applicability for the conditions of a “sharp” fatigue crack and for a “blunt” machined notch with an ∼0.001-in. tip radius.
