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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. S. Bulischeck, D. van Rooyen
Nuclear Technology | Volume 55 | Number 2 | November 1981 | Pages 383-393
Technical Paper | Materials | doi.org/10.13182/NT55-383
Articles are hosted by Taylor and Francis Online.
Pressurized water reactor steam generator tubing fabricated from Inconel 600 with processing histories typical of past and current production methods has been evaluated for stress corrosion cracking susceptibility. Quantitative relationships between failure times and the various factors that affect the susceptibility are being developed. These variables include stress, strain, strain rate, environment, and temperature. Constant extension rate tests have been employed to simulate material subjected to active deformation produced by denting and to provide data on crack velocities. Reverse tube U-bend specimens provide failure time versus temperature relationships in service-related environments for determining the service life expectancy of tubing that was no longer actively denting. Constant load and cyclic load tests have also been conducted. Initial results indicate that semilog Arrhenius relationships with temperature exist in the crack propagation stage and possibly crack in the initiation stage, which may make it possible to evaluate various heats of material and heat treatments with short-term high temperature tests.