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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.
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 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. 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.”
F. Genco, A. Hassanein
Fusion Science and Technology | Volume 60 | Number 1 | July 2011 | Pages 339-343
Materials Development & Plasma-Material Interactions | Proceedings of the Nineteenth Topical Meeting on the Technology of Fusion Energy (TOFE) (Part 1) | doi.org/10.13182/FST11-A12376
Articles are hosted by Taylor and Francis Online.
Off normal operating conditions resulting from plasma instabilities such as disruptions, edge-localized modes (ELM), and vertical displacement events (VDE) in tokamaks are to be expected with the potential of high energy deposition on plasma facing components (PFC). This high-energy dump in short duration, will result in extremely high temperatures of the PFC leading to melting and evaporation of the surfaces. Erosion resulting from these processes is life-limiting for the PFC as well as potential plasma contamination and degradation of performance. A comprehensive understanding based on the interplay of all physical processes during plasma instabilities on the divertor plate is necessary in order to improve reliability and characterize the performance of this key component. A novel particle-in-cell (PIC) technique has been developed and integrated into the existing HEIGHTS package in order to verify and have another perspective in assessing these problems.The HEIGHTS multi-dimensional integrated models take into account different stages of the plasma material interaction and its evolution along time. The extent of the damage will essentially depend on the intensity and duration of energy deposited on PFC. Both bulk and surface damages can take place depending on these parameters. For this reason different deposition times have been considered ranging from several microseconds to tens of milliseconds in order to provide comprehensive evolution of material erosion and transport. Comparison of the newly implemented PIC methods with current HEIGHTS existing models are discussed.