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Decommissioning & Environmental Sciences
The mission of the Decommissioning and Environmental Sciences (DES) Division is to promote the development and use of those skills and technologies associated with the use of nuclear energy and the optimal management and stewardship of the environment, sustainable development, decommissioning, remediation, reutilization, and long-term surveillance and maintenance of nuclear-related installations, and sites. The target audience for this effort is the membership of the Division, the Society, and the public at large.
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Utility Working Conference and Vendor Technology Expo (UWC 2024)
August 4–7, 2024
Marco Island, FL|JW Marriott Marco Island
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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
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.”
K. Schmid, M. J. Baldwin, R. P. Doerner, D. Nishijima
Nuclear Technology | Volume 159 | Number 3 | September 2007 | Pages 238-244
Technical Paper | Beryllium Technology | doi.org/10.13182/NT07-A3871
Articles are hosted by Taylor and Francis Online.
The deposition of beryllium (Be) on carbon (C) and tungsten (W) has been studied at the PISCES-B divertor simulator. Samples of C and W were exposed to a deuterium plasma that was seeded with Be from a small effusion cell mounted ~120 mm upstream from the sample. The incident and eroded flux of Be from these samples was monitored through visible light spectroscopy. The surface composition and layer thickness were measured using Auger electron spectroscopy and ion beam analysis. Results on the formation of Be layers on C and W focusing on the layer growth rate and thickness as functions of temperature are presented. Modeling calculations of Be layer formation on graphite can explain the equilibrium surface composition, but a prediction of the layer formation rate is hampered by an incomplete model of the influence of surface morphology on chemical erosion of the surface. For Be layer formation on W, the modeling calculations including Be diffusion and sublimation correctly predict the Be uptake into the W surface.