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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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August 2024
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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.”
Gang Jiang, Gang Chen, Weikun Ding, Yanghua Yang (State Power Investment Corporation Research Inst)
Proceedings | Advances in Thermal Hydraulics 2018 | Orlando, FL, November 11-15, 2018 | Pages 388-398
After the Fukushima accident, the lessons involving in nuclear emergency management show that the emergency decision should enhance the capacity of analyzing and predicting severe accident. In order to improve this capability, the severe accident management training simulator (SAMTS) has been developed. This simulator has transplanted the self-developed integral severe accident code cosSA to the simulation platform to build the accident scenario, and coupled with computerized severe accident management guideline (CSAMG). The SAMTS provides several interventions to simulate different mitigation measures in SAMG, which help the operators handle to mitigate consequences and understanding the impact of mitigating actions on accident progression. This simulator could build the accident scene quickly to forecast and analysis to make central role of the information source for decision-making technical support in nuclear emergency management. The main purpose of this paper is to give a brief description of this simulator, including architecture, methodology, physical models of cosSA and a simulation case. Simulation results were compared with MELCOR (mainstream simulator calculation engine service) with the same initial and boundary conditions. Comparison results show that the calculation results of temperature, pressure and water level by SAMTS agree well with MELCOR. The good agreement proves the simulation capability of cosSA, which shows that cosSA could be applied into the severe accident simulator.