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Division Spotlight
Fusion Energy
This division promotes the development and timely introduction of fusion energy as a sustainable energy source with favorable economic, environmental, and safety attributes. The division cooperates with other organizations on common issues of multidisciplinary fusion science and technology, conducts professional meetings, and disseminates technical information in support of these goals. Members focus on the assessment and resolution of critical developmental issues for practical fusion energy applications.
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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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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.”
M. Matsukawa, H. Ninomiya, H. Horiike, N. Hosogane, R. Yoshino
Fusion Science and Technology | Volume 21 | Number 3 | May 1992 | Pages 1624-1629
Plasma Engineering | doi.org/10.13182/FST92-A29952
Articles are hosted by Taylor and Francis Online.
This paper describes the design modifications to the plasma feedback control system, including power supply, for the Upgrade of JT-60. One of the major design issues was to be able to change the kind of control command for the thyristor converter from voltage to current and vice versa at any time during the discharge. Another one was to adopt a faster control system with 250µs response for stabilization of plasma vertical position, even in plasmas with high elongation of 1.8. These modifications improved the plasma controllability especially at initiation and made protecting the poloidal field coil system easier when the plasma disrupts. The high flexibility of the control system led to the achievement of a 4MA plasma after only 2 weeks of JT-60U operation.