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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
ANS Student Conference 2025
April 3–5, 2025
Albuquerque, NM|The University of New Mexico
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
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.”
E. L. Simmons, Donald J. Dudziak, S. A. W. Gerstl
Nuclear Technology | Volume 34 | Number 3 | August 1977 | Pages 317-340
Technical Paper | Reactor | doi.org/10.13182/NT77-A31797
Articles are hosted by Taylor and Francis Online.
The final design of a nuclear reactor and any component thereof evolves through an iterative process that necessitates the evaluation of many alternative concepts. In particular, conceptual and preliminary reactor systems studies require many quick survey calculations to determine changes of certain important design parameters in response to changes of layout, material compositions, and other design features. Effective methods to perform such design sensitivity analyses are described and applied to the nuclear design of a fusion reactor. Generalized perturbation theory is used to calculate sensitivities of integral nuclear design parameters to certain design changes. The accuracy of this method is evaluated for specific cases where large ranges of design perturbations are considered. Specifically, the effects on tritium breeding, energy deposition, atom displacements and transmutations in the Reference Theta-Pinch Reactor design due to variations in the beryllium thickness, choices of molybdenum, vanadium, or niobium structural material, BeO versus beryllium neutron multiplier, graphite region thickness, and 6Li enrichment are investigated.
