ANS is committed to advancing, fostering, and promoting the development and application of nuclear sciences and technologies to benefit society.
Explore the many uses for nuclear science and its impact on energy, the environment, healthcare, food, and more.
Explore membership for yourself or for your organization.
Conference Spotlight
Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
Standards Program
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!
Latest Magazine Issues
Jul 2025
Jan 2025
Latest Journal Issues
Nuclear Science and Engineering
September 2025
Nuclear Technology
August 2025
Fusion Science and Technology
Latest News
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. A. Bryant, G. A. Cowan, J. E. Sattizahn, Kurt Wolfsberg
Nuclear Science and Engineering | Volume 15 | Number 3 | March 1963 | Pages 288-295
Technical Paper | doi.org/10.13182/NSE63-A26439
Articles are hosted by Taylor and Francis Online.
Experimental evidence indicates that diffusion through the porous matrix and evaporation from the geometric surface are the rate-limiting processes in the loss of some fission products from uranium-graphite fuel. The loss of other fission products is rate-limited by unidentified processes which do not include those macroscopic diffusion or evaporation processes, but which may include diffusion or evaporation on the microscopic or granular scale.