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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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August 4–7, 2024
Marco Island, FL|JW Marriott Marco Island
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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.”
W. K. Terry, Jeffrey N. Brooks, Charles D. Boley
Fusion Science and Technology | Volume 7 | Number 2 | March 1985 | Pages 158-170
Technical Paper | Plasma Engineering | doi.org/10.13182/FST85-A24531
Articles are hosted by Taylor and Francis Online.
Several important issues related to impurity control in tokamak reactors were studied with a version of the plasma transport code WHIST. These issues are burn control feasibility by impurity injection and enhanced ripple transport, the effect on the plasma of limiter sputtered impurities, and the effect of operating with a self-pumped helium removal system. It was found that the plasma operating point and the mix between radiated power and power transported to the limiter can be controlled by varying the amount of impurities injected, the ripple transport, and the pumping fraction. It was also found that a self-pumped impurity control scheme that removes helium but not hydrogen results in acceptable plasma profiles. Finally, the effects of sputtered impurities depend greatly on whether or not neoclassical impurity transport is assumed, with the nonneoclassical case giving more favorable results.