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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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Fusion Science and Technology
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 since 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. local time 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.”
Masaru Takagi, Robert Cook, Richard Stephens, Jane Gibson, Sally Paguio
Fusion Science and Technology | Volume 38 | Number 1 | July 2000 | Pages 54-57
Technical Paper | Thirteenth Target Fabrication Specialists’ Meeting | doi.org/10.13182/FST00-A36116
Articles are hosted by Taylor and Francis Online.
Poly(α-methylstyrene) (PαMS) mandrel precursors (a PαMS containing fluorobenzene solution surrounding a water core) are suspended in a salt-containing water solution during curing. The salt is necessary to suppress the growth of water drops in the curing oil phase (resulting in vacuoles in the dried mandrel). However the use of salts in this manner results in a chemical potential difference between the inner pure water droplets and the outer bath. This results in a loss of water from the inner water phase, shrinking the mandrel as it cures and potentially wrinkling its surface. We have quantified the degree of mandrel shrinkage and expansion as a function of the difference in salt concentration. Expansion is not proportional to concentration difference. It does not appear that osmotically driven expansion removes wrinkles; the large wrinkle amplitudes were seen with all salt concentrations.