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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
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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BWXT will scout potential TRISO fuel production sites in Wyoming
BWX Technologies Inc. announced today that its Advanced Technologies subsidiary has signed a cooperation agreement with the state of Wyoming to evaluate locations and requirements for siting a potential new TRISO nuclear fuel fabrication facility in the state.
J. M. Cano, R. Caro, J. M. Martnez-Val
Nuclear Technology | Volume 48 | Number 3 | May 1980 | Pages 251-260
Technical Paper | Fuel Cycle | doi.org/10.13182/NT80-A32471
Articles are hosted by Taylor and Francis Online.
A nuclear fuel storage pool has to be designed to ensure subcriticality under any conditions. Within this framework, a peculiar moderation phenomenon that yields supercritical states from accidental (though very unlikely) circumstances is analyzed. Namely, in an overmoderated spent fuel pool, a reduction in the water density can lead to an increase in reactivity. Equally, a dry storage might be accidentally filled with water mist or foam, leading to a critical state. A numerical assessment is presented to point out the phenomenon and to clarify it. The dependence of results upon calculation methodologies and assumptions is also analyzed. The conclusion is reached that current methods with a slightly large number of energy groups should be used in this task. It is also found that poisoning the storage with a strong neutron absorber should avoid the aforementioned super-criticality.