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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.
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ANS Student Conference 2025
April 3–5, 2025
Albuquerque, NM|The University of New Mexico
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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
First astatine-labeled compound shipped in the U.S.
The Department of Energy’s National Isotope Development Center (NIDC) on March 31 announced the successful long-distance shipment in the United States of a biologically active compound labeled with the medical radioisotope astatine-211 (At-211). Because previous shipments have included only the “bare” isotope, the NIDC has described the development as “unleashing medical innovation.”
D. B. MacMillan, M. L. Storm
Nuclear Science and Engineering | Volume 16 | Number 4 | August 1963 | Pages 369-380
Technical Paper | doi.org/10.13182/NSE63-A26547
Articles are hosted by Taylor and Francis Online.
The applicability of the zero-neutron-lifetime approximation in describing the effects of neutron-level fluctuations is investigated for reactivities near and above prompt critical. It is concluded that meaningful statistical information can be obtained by the zero-lifetime model above prompt critical, and an approximate procedure for joining this model to a deterministic finite-lifetime model is suggested. Illustrative examples, comparing numerical results obtained by this approximation with more accurate finite-lifetime statistical calculations, are presented. In addition, application is made to Los Alamos and Livermore superprompt-critical burst experiments which fall outside of the practical computing range of the finite-lifetime model described in Part II. It is found that the agreement of calculation and experiment is as good as was found previously for a set of subprompt-critical burst experiments.
