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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
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
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.”
W. M. Stacey, J. Mandrekas, E. A. Hoffman, G. P. Kessler, C. M. Kirby, A. N. Mauer, J. J. Noble, D. M. Stopp, D. S. Ulevich
Fusion Science and Technology | Volume 41 | Number 2 | March 2002 | Pages 116-140
Technical Paper | doi.org/10.13182/FST02-A207
Articles are hosted by Taylor and Francis Online.
A design concept and the performance characteristics for a fusion transmutation of waste reactor (FTWR), a subcritical fast reactor driven by a tokamak fusion neutron source, are presented. The present design concept is based on nuclear, processing, and fusion technologies that either exist or are at an advanced stage of development and on the existing tokamak plasma physics database. An FTWR, operating with keff 0.95 at a thermal power output of ~3 GW and with a fusion neutron source operating at Qp = 1.5 to 2, could fission the transuranic content of ~100 metric tons of spent nuclear fuel per full-power year and would be self-sufficient in both electricity and tritium production. In equilibrium, a nuclear fleet consisting of light water reactors (LWRs) and FTWRs in the electrical power ratio of 3/1 would reduce by 99.4% the actinides discharged into the waste stream from the LWRs in a once-through fuel cycle that must be stored in high-level waste repositories.