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Division Spotlight
Nuclear Installations Safety
Devoted specifically to the safety of nuclear installations and the health and safety of the public, this division seeks a better understanding of the role of safety in the design, construction and operation of nuclear installation facilities. The division also promotes engineering and scientific technology advancement associated with the safety of such facilities.
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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Nuclear Technology
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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.”
Frank H. Ruddy, Abdul R. Dulloo, John G. Seidel, Frederick W. Hantz, Louis R. Grobmyer
Nuclear Technology | Volume 140 | Number 2 | November 2002 | Pages 198-208
Technical Paper | Nuclear Plant Instrumentation, Control, and Human-Machine Interface Technologies | doi.org/10.13182/NT02-A3333
Articles are hosted by Taylor and Francis Online.
Silicon carbide semiconductor neutron detectors are being developed for use as ex-vessel power monitors for pressurized water reactors. Key features such as neutron response, radiation resistance, and high-temperature operation have been explored for silicon carbide detectors, and the results are consistent with their use in the ex-vessel environment. Prototype silicon carbide ex-core neutron detectors have been assembled and tested under research reactor conditions simulating ex-core neutron monitoring requirements. Linear, pulse-mode operation without the need for gamma compensation has been demonstrated with these prototype detectors. The silicon carbide detectors are compared to presently deployed gas-filled ex-vessel detectors, and several advantages of the silicon carbide technology can be seen. It is anticipated that a wide-range silicon carbide neutron detector can be designed to replace the combined functions of the multiple power range detectors in use. Furthermore, the need for gamma-ray compensation will be eliminated, and more efficient reactor operation and simplified reactor operating procedures will result.