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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.
K. W. Burn
Nuclear Science and Engineering | Volume 119 | Number 1 | January 1995 | Pages 44-79
Technical Paper | doi.org/10.13182/NSE95-A24070
Articles are hosted by Taylor and Francis Online.
A general volumetric particle bifurcation capability has been inserted into the Direct Statistical Approach (DSA) surface parameter and cell models. The resulting extended DSA describes the second moment and time functions in terms of phase-space surface splitting/Russian roulette parameters (surface parameter model) or phase-space cell importances (cell model) in the presence of volumetric particle bifurcations including both natural events [such as (n,xn) or gamma production from neutron collisions] and artificial events (such as DXTRAN). At the same time, other limitations in the DSA models (concerning tally scores direct from the source and tracks surviving an event at which a tally score occurs) are removed. Given the second moment and time functions, the foregoing surface or cell parameters may then be optimized.