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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.
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2024 ANS Winter Conference and Expo
November 17–21, 2024
Orlando, FL|Renaissance Orlando at SeaWorld
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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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.
W. E. Parkins
Nuclear Science and Engineering | Volume 12 | Number 1 | January 1962 | Pages 91-105
Technical Paper | doi.org/10.13182/NSE62-A25376
Articles are hosted by Taylor and Francis Online.
Analysis of observations on surface film formation has indicated a single process to be primarily responsible. This process involves transport of particles present in the coolant to the surface, and attachment there through the establishment of chemical bonds. Brownian motion is the principal mechanism bringing partiales into contact with the surface, but many factors can be important in determining whether a given encounter will lead to permanent attachment of a particle. One of these factors, frequently present in reactor cores, is a surface electrostatic force caused by the flow of electrical currents. These currents are primarily the result of beta electron and photoelectron emission. Details of the various electrical parameters are analyzed for situations encountered in heterogeneous and homogeneous reactors. It is shown that the surface electrostatic force is critically dependent on the current density crossing the coolant-film interface, and on the electric resistivity of the surface of the film in contact with the coolant. Recommendations are made for means to prevent the formation of objectionable surface films. Attention is directed to the fact that the homogeneous slurry type of reactor combines conditions which can lead to the deposition of fuel bearing films on in-core surfaces.