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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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2024 ANS Winter Conference and Expo
November 17–21, 2024
Orlando, FL|Renaissance Orlando at SeaWorld
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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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New laws offer nuclear industry incentives for existing power plant uprates
This year, the U.S. nuclear industry received a much-needed economic boost that could help preserve operating nuclear power plants and incentivize upgrades that extend their lifespan and power output.
Signed into law in 2022, the Inflation Reduction Act offers production tax credits (PTCs) for existing nuclear power plants and either PTCs or investment tax credits (ITCs) for new carbon-free generation. These credits could make power uprates—increasing the maximum power level at which a commercial plant may operate—a much more appealing option for utilities.
J. M. Martínez-Val, M. Piera, Y. Ronen
Nuclear Science and Engineering | Volume 105 | Number 4 | August 1990 | Pages 349-370
Technical Paper | doi.org/10.13182/NSE90-A21470
Articles are hosted by Taylor and Francis Online.
The discretized diffusion equation is structured in a formalism embodying in the left side all the terms involving the group fluxes at the generic point under calculation, and in the right side containing all the terms involving the fluxes at neighbor points. This formalism is especially suited for vectorial computation and also presents very good computing performance in scalar computers. The computing methodology includes an acceleration technique, “coarse-mesh precalculation,” to minimize computing times, particularly for cases with very large numbers of points. The algorithm is stable and positive, and it is improved by a discretization of the Laplacian operator using five points in each coordinate.