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.
Günter H. Lohnert, Richard T. Schneider
Nuclear Technology | Volume 10 | Number 3 | March 1971 | Pages 315-321
Technical Paper | Radioisotope | doi.org/10.13182/NT71-A30964
Articles are hosted by Taylor and Francis Online.
A beam of slow positrons is required as a tool for a new plasma diagnostic technique. Other applications in particle physics and analytical chemistry exist; e.g., cross-section measurements, analysis of trace elements, etc. Design and construction of a positron gun capable of generating a beam of slow positrons is described. Both 22Na or 58Co are possible positron sources. Employing a 22Na source of 2 mCi, the device produces 1850 slow positrons per second, at a beam radius of 1.9 mm.
