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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.
R. A. Lewis and T. J. Connolly
Nuclear Science and Engineering | Volume 24 | Number 1 | January 1966 | Pages 18-25
Technical Paper | doi.org/10.13182/NSE66-A18120
Articles are hosted by Taylor and Francis Online.
The theory of Lane, Nordheim, and Sampson for the calculation of the effective resonance integral in media containing absorber in the form of small particles was tested by comparison with experiment. Measurements were made on samples containing gold particles in a range of volume fractions from 0.1 to 30%. Two diluent materials, lead and graphite, were used to test the effect of the type of material admixed with the absorber particles in the samples. Comparison of the theory and experiments was made on the basis of the calculated and measured decrease in effective resonance integral of the particle case relative to the corresponding homogeneous case with the same average absorber and diluent density. The results show that, for small absorber volume fractions, there is good agreement between theory and experiment, if the theory is suitably modified to describe the experiment. This agreement also extends to volume fractions above 10%, although the results of the theory are in question in this range.
