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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 Standards Committee is responsible for the development and maintenance of voluntary consensus standards that address the design, analysis, and operation of components, systems, and facilities related to the application of nuclear science and technology. Find out What’s New, check out the Standards Store, or Get Involved today!
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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.
E. M. Oblow
Nuclear Science and Engineering | Volume 65 | Number 1 | January 1978 | Pages 187-191
Technical Note | doi.org/10.13182/NSE78-A27143
Articles are hosted by Taylor and Francis Online.
The general development of a sensitivity theory for nonlinear algebraic equations with constraints is presented. Adjoint equations suitable for evaluating derivatives of system response functions with respect to input parameters are derived. The role of the solution of the constrained problem in eliminating nonessential constraints is highlighted. Two sample problems, one linear and one nonlinear, are solved to illustrate the theory.
