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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
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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.
H. K. Clark
Nuclear Technology | Volume 48 | Number 2 | April 1980 | Pages 164-170
Technical Paper | Analysis | doi.org/10.13182/NT80-A32462
Articles are hosted by Taylor and Francis Online.
Critical masses and subcritical mass limits in oxide-water mixtures were calculated for actinide nuclides other than 233U, 235U, and 239Pu that have an odd number of neutrons in the nucleus; Sn transport theory was used together with cross sections, drawn from the GLASS multigroup library, developed to provide accurate forecasts of actinide production at Savannah River. The subcritical limits are: 201 g for 241Pu, 13 g for 242mAm, 90 g for 243Cm, 30 g for 245Cm, 900 g for 247Cm, 10 g for 249Cf and 5 g for 251 Cf Association of 241Pu with an equal mass of 240Pu increases the 241Pu limit to a value greater than that for pure 239Pu. Association of 242mAm with 241 Am increases the limit for the mixture to that for dry, theoretical density AmO2 at isotopic concentrations of 242mAm less than ∼6%. Association of 245Cm with 244Cm increases the limit according to the formula 30 + 0.3 244Cm/245Cm up to the limit for dry CmO2. A limiting mass of 8.15 kg for plutonium containing at least 67% 238Pu as oxide was calculated that applies (provided 240Pu exceeds 241Pu) with no limit on moderation.