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Division Spotlight
Fuel Cycle & Waste Management
Devoted to all aspects of the nuclear fuel cycle including waste management, worldwide. Division specific areas of interest and involvement include uranium conversion and enrichment; fuel fabrication, management (in-core and ex-core) and recycle; transportation; safeguards; high-level, low-level and mixed waste management and disposal; public policy and program management; decontamination and decommissioning environmental restoration; and excess weapons materials disposition.
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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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.”
Alfredo Portone, Raffaele Albanese, Yuri V. Gribov, Michel Huguet, David H. Humphreys, Charles E. Kessel, Pier Luigi Mondino, L. Donald Pearlstein, John C. Wesley
Fusion Science and Technology | Volume 32 | Number 3 | November 1997 | Pages 374-389
Technical Paper | Plasma Control Issues for Tokamaks | doi.org/10.13182/FST97-A2
Articles are hosted by Taylor and Francis Online.
The methodology and the up-to-date results concerning the solution to the problem of plasma position and shape control in the International Thermonuclear Experimental Reactor (ITER) are presented. Attention is focused on the burn phase of the operation scenario, when the control objectives are particularly stringent. The aim is to control up to six distances (gaps) between the plasma separatrix and the plasma-facing components. The control algorithm is designed within a linear quadratic Gaussian optimal control framework. Linear and nonlinear simulations show the performance of the controller in the presence of plasma vertical position offsets, beta drops, and power supply voltage saturation.