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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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Latest News
Four million nuclear jobs by 2050: Who will do them?
Industry leaders from around the globe met this month to discuss the talent development that will be necessary for the long-term success of the nuclear industry.
The International Conference on Nuclear Knowledge Management and Human Resources Development, hosted by the International Atomic Energy Agency, was held in Vienna earlier this month. Discussed there was the agency’s forecast for nuclear capacity to more than double—or hopefully triple—by 2050 and the requirement of more than four million professionals to support the industry.
Mukesh Tayal, Lorne D. Macdonald, Erl Kohn, Walter P. Dovigo
Nuclear Technology | Volume 85 | Number 3 | June 1989 | Pages 300-313
Technical Paper | Nuclear Fuel | doi.org/10.13182/NT89-A34252
Articles are hosted by Taylor and Francis Online.
The GASOUT computer code calculates fission gas release, activity release, and fission product swelling in a Canada deuterium uranium (CANDU) fuel element during transient (nonequilibrium) conditions such as load following, postulated accidents involving high temperatures, and temporary postdryout operation of fuel. The phenomena modeled in the code include production of isotopes; diffusion; grain growth, both equiaxed and columnar; sweeping by grain boundaries; growth of grain-boundary bubbles; interlinkage of bubbles; grain-face separation; release by melting; radioactive decay; and effect of precursors. These phenomena are described in the code by rate equations, which are integrated numerically within the code. Therefore, the model is dynamic and provides results during short-term transients (few seconds to few days) as well as at the end of long irradiations (few years). This one-dimensional code was developed for accident conditions that lead to high fuel temperature, but it is also applicable to normal operating conditions. The activity calculations account for contributions from both volatile and nonvolatile fission products. They also account for radioactive decay during all the above processes and for the effect of precursors. The predictions of GASOUT were found to be in reasonable agreement with the steady-state predictions (for stable gas) of the NOTPAT code on which it is based. Furthermore, agreement was also reasonable to exact solutions from the Booth diffusion model, to data from the CONTACT-1 series of experiments and from the direct electric heating experiments, and to American Nuclear Society Standard 5.4.