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Division Spotlight
Isotopes & Radiation
Members are devoted to applying nuclear science and engineering technologies involving isotopes, radiation applications, and associated equipment in scientific research, development, and industrial processes. Their interests lie primarily in education, industrial uses, biology, medicine, and health physics. Division committees include Analytical Applications of Isotopes and Radiation, Biology and Medicine, Radiation Applications, Radiation Sources and Detection, and Thermal Power Sources.
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 Science and Engineering
August 2024
Nuclear Technology
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.”
B.B. Glasgow, W.G. Wolfer
Fusion Science and Technology | Volume 8 | Number 1 | July 1985 | Pages 546-552
Material Engineering — Behavior | Proceedings of the Sixth Topical Meeting on the Technology of Fusion Energy (San Francisco, California, March 3-7, 1985) | doi.org/10.13182/FST85-A40096
Articles are hosted by Taylor and Francis Online.
Ferritic steels have been shown to swell much less than 316 austenitic stainless steel. For this reason ferritic steels are being considered for fusion reactor applications as an alternative to 316 austenitic stainless steel. A lifetime analysis based on crack propagation has been done for ferritic steel using typical first wall parameters. The results for ferritic steel are compared to results from a similar analysis done for 316 austenitic stainless steel. The comparison shows that ferritic steels have lower thermal stresses than 316 austenitic stainless steel by a factor of about 2. Because of the lower thermal stresses, the cyclic stresses resulting from the plasma-on/plasma-off cycles are reduced and the predicted fatigue crack growth rate is less for ferritic steels. The analysis predicts a lifetime more than 10 times longer for ferritic steel than for 316 austenitic stainless steel. The comparison clearly shows the great potential of ferritic steel over 316 austenitic stainless steel as a first wall material to achieve the high wall loading desired for future fusion reactors.