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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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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.”
Ronald I. Ewing, Michael A. Butler, James E. Schirber, D. S. Ginley
Fusion Science and Technology | Volume 16 | Number 3 | November 1989 | Pages 404-407
Special Section Content | Cold Fusion Technical Notes | doi.org/10.13182/FST89-A29135
Articles are hosted by Taylor and Francis Online.
A search for neutrons from deuterium “cold fusion” systems (both electrochemical and high-pressure gas cells) was conducted in an underground laboratory using three highly sensitive neutron detectors composed of 3He gas proportional counter tubes embedded in polyethylene moderators. Any neutron emission from a test cell would be simultaneously observed in all three detectors in a known proportion. The counting system can detect random, continuous emission at a rate of <100 n/h, and short bursts of as few as 35 neutrons. None of the cold fusion systems tested emitted neutrons at these levels. Occasional anomalous groups of counts were observed in individual detectors that closely mimicked both continuous and burst emission. These anomalies were identified as spurious detector artifacts rather than true detection, because counts were not observed in the appropriate proportion in all three detectors. The use of multiple detectors simultaneously observing the test system in a very low background environment can effectively identify spurious artifacts that might otherwise be interpreted as evidence of neutron emission and may be essential to the demonstration of low-level neutron production from cold fusion systems.