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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
2024 ANS Annual Conference
June 16–19, 2024
Las Vegas, NV|Mandalay Bay Resort and Casino
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
College students help develop waste-measuring device at Hanford
A partnership between Washington River Protection Solutions (WRPS) and Washington State University has resulted in the development of a device to measure radioactive and chemical tank waste at the Hanford Site. WRPS is the contractor at Hanford for the Department of Energy’s Office of Environmental Management.
X. Lefebvre, K. Liger, M. Troulay, N. Ghirelli, C. Perrais
Fusion Science and Technology | Volume 60 | Number 4 | November 2011 | Pages 1276-1279
Environmental and Organically Bound Tritium | Proceedings of the Ninth International Conference on Tritium Science and Technology (Part 2) | doi.org/10.13182/FST11-A12663
Articles are hosted by Taylor and Francis Online.
The oxide mixture MnO2/Ag2O has been identified as one of the best materials to oxidize hydrogen under ambient temperature and atmospheric pressure conditions. Studies have been carried out within the scope of the mitigation of hydrogen risk in fusion reactors and the optimal composition of this mixture has been determined by Chaudron as MnO2/Ag2O 10% wt. Using Maruéjouls' experiments, a model, previously developed to explain the oxidation of hydrogen by copper oxide for helium purification purpose, has been adapted and its simulation capability tested. To achieve this point, an exploratory experiment with a thin MnO2/Ag2O bed has been carried out under low hydrogen initial concentration (130 Vppm) in order to simulate tritium degassing. Although a very good global agreement between the calculations and the experimental points, the model is unable to account for the behaviour of hydrogen breakthrough at the beginning of the experimentation. Thus, enhancements of this model are presented in this paper. Finally, Scanning Electron Microscopy (SEM) analyses confirm the coherence of some assumptions used to solve the model equations.