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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.”
H. Y. Khater, W. F. Vogelsang
Fusion Science and Technology | Volume 19 | Number 3 | May 1991 | Pages 864-869
Advanced Reactor | doi.org/10.13182/FST91-A29453
Articles are hosted by Taylor and Francis Online.
Experimental radionuclide production cross sections have been collected for protons with energy similar to those protons produced in a D-3He fusion reactor. Proton energy-dependent cross sections (Ep < 14.7 MeV) were used along with the proton stopping data of Anderson and Ziegler to produce a proton-induced thick-target radionuclide activation yields library. In its present form, the library contains thick-target yield data for 164 radioactive isotopes. The library has been used in an activation analysis study aimed at investigating the effect of proton-induced activity on the total level of radioactivity generated in Apollo-L2 (a D-3He tokamak fusion power reactor). Because protons have a short range in solid targets, their effect has been noticed only within the first wall of the reactor. Results showed that while neutron-induced specific activity generated in the reactor Tenelon first wall is 8.1 × 107 Ci/m3, proton-induced specific activity only amounted to 6.37 × 105 Ci/m3.