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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.
J. W. Meadows, J. F. Whalen
Nuclear Science and Engineering | Volume 13 | Number 3 | July 1962 | Pages 230-236
Technical Paper | doi.org/10.13182/NSE62-A26157
Articles are hosted by Taylor and Francis Online.
The pulsed source method has been used to measure the thermal neutron diffusion parameters of zircaloy-2 hydride whose approximate composition is ZrH1.7. The asymptotic decay constant (zeroth energy eigenvalue) has been measured for the buckling range 0.03 < B2 < 0.39 cm−2 and has been fitted by a polynomial containing terms to B8. The first energy eigenvalue has been measured over the range 0.05 < B < 0.39 cm−2 and has been used to estimate the thermalization time constant. In addition the thermalization time constant has also been determined from time dependent transmission measurements with 1 /υ absorbers.
