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.
Division Spotlight
Isotopes & Radiation
Members are devoted to applying nuclear science and engineering technologies involving isotopes, radiation applications, and associated equipment in scientific research, development, and industrial processes. Their interests lie primarily in education, industrial uses, biology, medicine, and health physics. Division committees include Analytical Applications of Isotopes and Radiation, Biology and Medicine, Radiation Applications, Radiation Sources and Detection, and Thermal Power Sources.
Meeting 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!
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Latest News
NRC cuts fees by 50 percent for advanced reactor applicants
The Nuclear Regulatory Commission has announced it has amended regulations for the licensing, inspection, special projects, and annual fees it will charge applicants and licensees for fiscal year 2025.
H. Derrien, N. M. Larson, G. de Saussure, R. B. Perez
Nuclear Science and Engineering | Volume 96 | Number 1 | May 1987 | Pages 58-65
Technical Note | doi.org/10.13182/NSE87-A16365
Articles are hosted by Taylor and Francis Online.
The 241Pu total cross-section measurement of Kolar and Carraro and the neutron fission cross-section measurements of Blons et al. and Weston and Todd were analyzed with the R-matrix resonance analysis program SAMMY, which uses Bayes’ equation to extract resonance parameters from the experimental data. A set of Reich-Moore-type resonance parameters that describes the cross sections up to 100 eV was obtained. It is shown that existing data are not adequate for a precise evaluation of the resonance cross sections, and the need for additional work is discussed.
