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Aerospace Nuclear Science & Technology
Organized to promote the advancement of knowledge in the use of nuclear science and technologies in the aerospace application. Specialized nuclear-based technologies and applications are needed to advance the state-of-the-art in aerospace design, engineering and operations to explore planetary bodies in our solar system and beyond, plus enhance the safety of air travel, especially high speed air travel. Areas of interest will include but are not limited to the creation of nuclear-based power and propulsion systems, multifunctional materials to protect humans and electronic components from atmospheric, space, and nuclear power system radiation, human factor strategies for the safety and reliable operation of nuclear power and propulsion plants by non-specialized personnel and more.
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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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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.”
Weston M. Stacey
Fusion Science and Technology | Volume 36 | Number 1 | July 1999 | Pages 38-46
Technical Paper | doi.org/10.13182/FST99-A89
Articles are hosted by Taylor and Francis Online.
A linear analysis of thermal instabilities along the magnetic field lines in the plasma edge is used to derive predictive algorithms for the edge density limit for the onset of multifaceted asymmetric radiation from the edge (MARFE) within the last closed flux surface in tokamaks. Calculated MARFE onset density limits for representative impurity and recycling neutral concentrations and representative edge plasma parameters in a model problem exhibit the expected strong dependence on impurity type and concentration at low recycling neutral concentrations. At recycling neutral concentrations greater than ~1 × 10-5, the MARFE onset density limit is found to depend strongly on the recycling neutral concentration and to be relatively independent of impurity type or concentration. Predicted MARFE onset density limits for two DIII-D shots agree reasonably well with experimental data.