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Radiation Protection & Shielding
The Radiation Protection and Shielding Division is developing and promoting radiation protection and shielding aspects of nuclear science and technology — including interaction of nuclear radiation with materials and biological systems, instruments and techniques for the measurement of nuclear radiation fields, and radiation shield design and evaluation.
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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.”
T. Kunugi, M. Akiba, M. Ogawa, O. Sato, M. Nakamura
Fusion Science and Technology | Volume 21 | Number 3 | May 1992 | Pages 1868-1872
Plasma-Facing Component | doi.org/10.13182/FST92-A29991
Articles are hosted by Taylor and Francis Online.
The electron-gamma shower code EGS4 was applied to the simulation of energy deposition from runaway electrons in the plasma facing components of tokamaks. We calculated the energy deposition in the layers of carbon and molybdenum irradiated by electrons which energies were from 10 to 300MeV and the incident angles were from 0.5 to 25 degrees. The energy depositions calculated by EGS4 were compared to the results of GEANT3. EGS4 calculated higher total energy deposition rate in both carbon and molybdenum layers, and lower peak energy at the surface of molybdenum layer. EGS4 was also applied to the calculations of the energy depositions on three types of proposed ITER divertor targets. The results of these calculations showed that the peak deposited energies on metallic components were not affected by their geometrical shapes in case of low incident angle.