ANS is committed to advancing, fostering, and promoting the development and application of nuclear sciences and technologies to benefit society.
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Division Spotlight
Reactor Physics
The division's objectives are to promote the advancement of knowledge and understanding of the fundamental physical phenomena characterizing nuclear reactors and other nuclear systems. The division encourages research and disseminates information through meetings and publications. Areas of technical interest include nuclear data, particle interactions and transport, reactor and nuclear systems analysis, methods, design, validation and operating experience and standards. The Wigner Award heads the awards program.
Meeting Spotlight
Conference on Nuclear Training and Education: A Biennial International Forum (CONTE 2025)
February 3–6, 2025
Amelia Island, FL|Omni Amelia Island Resort
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
Wyoming OKs construction of TerraPower’s Natrium plant
Progress continues for TerraPower’s Natrium plant, with the latest win coming in the form of a state permit for construction of nonnuclear portions of the advanced reactor.
L. J. Perkins, N. Evans, Malcolm C. Scott, B. Y. Underwood
Nuclear Science and Engineering | Volume 78 | Number 1 | May 1981 | Pages 30-43
Technical Paper | doi.org/10.13182/NSE81-A19604
Articles are hosted by Taylor and Francis Online.
A miniature NE-213 scintillation counter and hydrogen proportional counters have been used in conjunction with a calibrated 14-MeV deuterium-tritium neutron source to measure the neutron flux per source neutron per second at a number of positions in a 1.25-m-diam sphere of lithium fluoride. The experimental techniques used are discussed, and the resulting neutron spectra are compared with those from one-dimensional Sn calculations using the ENDF/B-IV data set, allowance being made both for neutron yield anisotropy and for the variation in source neutron energy with angle of emission.