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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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ANS Student Conference 2025
April 3–5, 2025
Albuquerque, NM|The University of New Mexico
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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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Latest News
Norway’s Halden reactor takes first step toward decommissioning
The government of Norway has granted the transfer of the Halden research reactor from the Institute for Energy Technology (IFE) to the state agency Norwegian Nuclear Decommissioning (NND). The 25-MWt Halden boiling water reactor operated from 1958 to 2018 and was used in the research of nuclear fuel, reactor internals, plant procedures and monitoring, and human factors.
Paul A. Robinson, Jr., George D. Sauter
Nuclear Science and Engineering | Volume 49 | Number 2 | October 1972 | Pages 117-129
Technical Paper | doi.org/10.13182/NSE72-A35500
Articles are hosted by Taylor and Francis Online.
Inverse Compton scattering, wherein a photon gains energy as a result of a reaction with a moving electron, has been studied as a potential energy loss mechanism in the operation of a controlled thermonuclear reactor (CTR). Assuming local thermodynamic equilibrium within a 500-cm-diam plasma at 20 keV we have calculated, for various plasma densities, the influence of inverse Compton scattering on steady-state photon energy leakage via two potential cooling effects: the increased escape probability of the photons generated within the plasma itself, and the negative net energy deposition within the plasma of an incident external photon flux, such as might be generated by the CTR radiation shield through (n,γ) reactions and photon scattering. For currently anticipated CTR plasma densities (1015 ions/cm3), the increase in steady-state photon leakage due to inverse Compton scattering is negligible. For plasma densities of 1019 ions/cm3 or more, the increase is significant (≥10%).
