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Division Spotlight
Reactor Physics
The division's objectives are to promote the advancement of knowledge and understanding of the fundamental physical phenomena characterizing nuclear reactors and other nuclear systems. The division encourages research and disseminates information through meetings and publications. Areas of technical interest include nuclear data, particle interactions and transport, reactor and nuclear systems analysis, methods, design, validation and operating experience and standards. The Wigner Award heads the awards program.
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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Fusion Science and Technology
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.”
Glen R. Longhurst, Brad J. Merrill
Fusion Science and Technology | Volume 39 | Number 2 | March 2001 | Pages 874-879
Divertor and Plasma-Facing Components | doi.org/10.13182/FST01-A11963349
Articles are hosted by Taylor and Francis Online.
The Tritium Migration Analysis Program (TMAP) was an aid in performing safety analyses of fusion systems using combined heat and mass transport calculations. Upgraded to TMAP4, it was verified and validated at the INEEL. The further upgrade of the code to TMAP2000 was accomplished in response to several needs. TMAP and TMAP4 had the capacity to deal with only a single trap for diffusing gaseous species in solid structures. TMAP2000 has been revised to include up to three separate traps and to keep track separately of each of up to 10 diffusing species in each of the traps. The original code experienced problems in dealing with heteronuclear molecule formation such as HD and DT. That has been corrected. A further sophistication is the addition of non-diffusing surface species and surface binding energy dynamics options. TMAP2000 will accommodate up to 30 such surface species. Additionally, TMAP2000 allows simulation of surface fluxes dependent on a surface binding energy and an adsorption barrier energy. All of the previously existing features for heat transfer, flows between enclosures, and chemical reactions within the enclosures have been retained, but the allowed problem size and complexity have been significantly increased to take advantage of the greater memory and speed available on modern computers.