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Division Spotlight
Nuclear Nonproliferation Policy
The mission of the Nuclear Nonproliferation Policy Division (NNPD) is to promote the peaceful use of nuclear technology while simultaneously preventing the diversion and misuse of nuclear material and technology through appropriate safeguards and security, and promotion of nuclear nonproliferation policies. To achieve this mission, the objectives of the NNPD are to: Promote policy that discourages the proliferation of nuclear technology and material to inappropriate entities. Provide information to ANS members, the technical community at large, opinion leaders, and decision makers to improve their understanding of nuclear nonproliferation issues. Become a recognized technical resource on nuclear nonproliferation, safeguards, and security issues. Serve as the integration and coordination body for nuclear nonproliferation activities for the ANS. Work cooperatively with other ANS divisions to achieve these objective nonproliferation policies.
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.
Kanji Tasaka
Nuclear Technology | Volume 29 | Number 2 | May 1976 | Pages 239-248
Analysis | doi.org/10.13182/NT76-A31583
Articles are hosted by Taylor and Francis Online.
A method has been developed to estimate the irradiation history and burnup of a spent fuel by gamma-ray spectroscopy. The gamma-ray spectrum, measured by using a Ge(Li) detector, is analyzed by the standard spectrum method to obtain the activity of the fission product. The irradiation history is fitted by the least-squares method to reproduce the activity of each fission-product nuclide. For this purpose, the irradiation history is divided into several time intervals and the contribution of each interval to the production of each fission product is calculated analytically by repeatedly using the Bateman equation. The method was successfully applied to the Materials Testing Reactor-type fuel element irradiated in the core of Japan Research Reactor-4 for about four years.
