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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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Latest News
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.
Shang-Fon Su, Gene L. Woodruff, N. J. McCormick
Nuclear Technology | Volume 29 | Number 3 | June 1976 | Pages 392-405
Technical Paper | Fusion Reactor Material / Reactor | doi.org/10.13182/NT76-A31604
Articles are hosted by Taylor and Francis Online.
The neutronics of several fusion-fission hybrid reactors were studied to develop a design capable of producing 233U while maintaining a self-sufficiency in tritium. High breeding rates are achieved by using an equilibrium concentration of 238U and 239Pu instead of thorium in a converter region to produce a significantly greater multiplication of the 14-MeV source neutrons. The final blanket design has an 18-cm neutron converter that consists of 0.5-in-diam pins of 92% 238U/8% 239Pu with a 0.7-in. pitch. The 40-cm breeding region consists of 0.5-in.-diam pins of ThC with 0.6-in. pitch; the overall blanket thickness is 102 cm. The tritium and fissile breeding ratios are 1.052 and 1.880, respectively, and there are 3.537 233U nuclei produced per fusion neutron. An analysis of the performance of the blanket over a 2-yr period was carried out, including the buildup and depletion of fissionable nuclides and fission products. The final design requires an inventory of ∼30 000 kg of 239Pu, which must be produced for the design to be viable. A preliminary static and time-dependent study was done for a startup cycle to serve this purpose.