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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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Utility Working Conference and Vendor Technology Expo (UWC 2024)
August 4–7, 2024
Marco Island, FL|JW Marriott Marco Island
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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Latest News
Vogtle-3 shuts down for valve issue
One of the new Vogtle units in Georgia was shut down unexpectedly on Monday last week for a valve issue that has been investigated and repaired. According to multiple local news outlets, Georgia Power reported on July 17 that unit 3 was back in service.
Southern Company spokesperson Jacob Hawkins confirmed that Vogtle-3 went off line at 9:25 p.m. on July 8 “due to lowering water levels in the steam generators caused by a valve issue on one of the three main feedwater pumps.”
Masabumi Nishikawa
Fusion Science and Technology | Volume 57 | Number 2 | February 2010 | Pages 120-128
Technical Paper | doi.org/10.13182/FST10-A9366
Articles are hosted by Taylor and Francis Online.
The tritium balance in a D-T fusion reactor is discussed in this paper comparing the amount of tritium consumed in the fueling cycle including the plasma vessel with the amount of tritium generated in the blanket system, using information reported so far. This comparison shows that the overall burning efficiency of tritium in the plasma vessel, the tritium loss ratio represented by tritium trapping in the redeposition layer of the plasma-facing material, and the recovery efficiency in the tritium breeding system play important roles in the tritium balance and that it may not be easy to maintain good tritium economy of a D-T fusion reactor if the proper combination of burning efficiency, tritium loss ratio, and tritium recovery efficiency is not obtained. The allowable limits for the overall tritium burning efficiency, for the tritium loss ratio in the fueling cycle, and for the recovery efficiency to secure the self-sustainable tritium system are also discussed in this paper.