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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.
Meeting Spotlight
2022 ANS Winter Meeting and Technology Expo
November 13–17, 2022
Phoenix, AZ|Arizona Grand Resort
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
CNSC vendor design review of eVinci microreactor to begin
Westinghouse's eVinci microreactor (Image: Westinghouse)
Westinghouse Electric Company has signed a service agreement with the Canadian Nuclear Safety Commission (CNSC) to bring the eVinci microreactor closer to commercialization, the company announced Tuesday. The agreement initiates a vendor design review (VDR)—a prelicensing technical assessment of a company’s reactor technology.
The objective of a VDR, according to the CNSC, is to verify the acceptability of a nuclear power plant design with respect to Canadian nuclear regulatory requirements and expectations, as well as Canadian codes and standards. The review also aims to identify fundamental barriers to licensing a new design in Canada and to assure that a resolution path exists for any design issues identified.
A. S. Ivanova, A. N. Bukin, S. A. Marunich, Yu. S. Pak, A. N. Perevezentsev, M. B. Rozenkevich
Fusion Science and Technology | Volume 75 | Number 1 | January 2019 | Pages 24-35
Technical Paper | dx.doi.org/10.1080/15361055.2018.1499396
Articles are hosted by Taylor and Francis Online.
Operation of atmosphere detritiation systems during fire in confinement sector with tritium inventory at risk presents a concern for catalytic reactor to operate in thermally unstable regime. Catalytic oxidation of organic compounds commonly released during fire occurs through reactions with high heat effect and can cause uncontrollable increasing temperature in reactor. Under certain conditions self-ignition of fume gas will start and continue in regime of gas-phase reaction at very high temperature with flame propagating in direction opposite to gas flow. As a result, catalytic reactor loses its operability and presents an intrinsic hazard for atmosphere detritiation system. This study assesses the impact of various parameters, such as heat effect, rate and activation energy of catalytic chemical reaction, and concentration of hydrocarbons on probability of catalytic reactor falling into thermally unstable regime. Experimental tests with catalytic oxidation of fume gases produced by combustion of polymeric insulation materials of electrical cables confirmed results of the assessment and allowed to identify conditions for catalytic reactor to operate in thermally unstable regime. To mitigate the probability of such event, arrangement for catalytic reactors in atmosphere detritiation system shall be changed. Various options are reviewed.
