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
International Conference on Mathematics and Computational Methods Applied to Nuclear Science and Engineering (M&C 2025)
April 27–30, 2025
Denver, CO|The Westin Denver Downtown
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
ANS designates Armour Research Foundation Reactor as Nuclear Historic Landmark
The American Nuclear Society presented the Illinois Institute of Technology with a plaque last week to officially designate the Armour Research Foundation Reactor a Nuclear Historic Landmark, following the Society’s decision to confer the status onto the reactor in September 2024.
Minsun Ouyang
Nuclear Technology | Volume 71 | Number 2 | November 1985 | Pages 506-511
Technical Paper | Analyses | doi.org/10.13182/NT85-A33702
Articles are hosted by Taylor and Francis Online.
An iterative correction method based on gamma attenuation in matrix material and self-absorption in plutonium has been developed for the nondestructive gamma assay of plutonium waste. In the process, the equivalent atomic number of the matrix material and the lump radius of plutonium are estimated. These estimations can be used for the detection against possible covert diversion of plutonium. Both homogeneous and heterogeneous samples were tested and consistent results were obtained. Specially shielded lump plutonium samples canned in the waste drums were tested and the contents of those samples were adequately disclosed.
