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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.
Meeting Spotlight
International Conference on Mathematics and Computational Methods Applied to Nuclear Science and Engineering (M&C 2025)
April 27–30, 2025
Denver, CO|The Westin Denver Downtown
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
TerraPower begins U.K. regulatory approval process
Seattle-based TerraPower signaled its interest this week in building its Natrium small modular reactor in the United Kingdom, the company announced.
TerraPower sent a letter to the U.K.’s Department for Energy Security and Net Zero, formally establishing its intention to enter the U.K. generic design assessment (GDA) process. This is TerraPower’s first step in deployment of its Natrium technology—a 345-MW sodium fast reactor coupled with a molten salt energy storage unit—on the international stage.
A. E. G. Bates, E. P. Epler, L. C. Oakes
Nuclear Technology | Volume 4 | Number 5 | May 1968 | Pages 289-296
Technical Paper and Note | doi.org/10.13182/NT68-A26394
Articles are hosted by Taylor and Francis Online.
The Oak Ridge National Laboratory second generation of protection systems as applied to the High Flux Isotope Reactor (HFIR) has three independent channels, each with seven inputs; some of the inputs are calculated automatically and continuously. General coincidence logic was selected to permit on-line testing of complete channels and on-line maintenance. Although some designers consider local coincidence systems less likely to cause spurious scrams due to equipment failures, operating experience with the HFIR system has been entirely satisfactory. With the reactor operating at full power for 13 months prior to October 1967, there has been one safe (scram), but no unsafe, equipment failure. Sufficient confidence in the equipment has been gained to increase the test interval from 8 to 24 h. On-line maintenance has advantages over off-line maintenance, in addition to conservation of downtime, and tends to enhance safety.
