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Division Spotlight
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.
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.”
Woong Chae Kim, Soon Mo Hwang, Myeun Kwon, Kie Hyung Chung
Fusion Science and Technology | Volume 39 | Number 1 | January 2001 | Pages 217-220
Poster Presentations | doi.org/10.13182/FST01-A11963445
Articles are hosted by Taylor and Francis Online.
A versatile end tank system called “Cusp” has been constructed to comply with the main objectives of Hanbit mirror machine - a) control of neutral reflux, b) plasma application by using the end loss plasma flow, c) providing axi-symmetric minimum-B configuration for MHD study. Cusp system consists of a vacuum vessel, a liquide-helium-cooled cryopump, a set of magnets to provide axi-symmetric semi-cusp shaped magnetic field configuration
The pumping speed of the cryopump has been designed to be 2×105 liter/sec and tested to be 2.3×105 liters/sec. To observe the effect of neutral reflux, dynamic neutral pressure and end loss ion's energy distribution has been measured at Cusp during plasma shot. It has been shown that the energy confinement at the Central Cell has been improved
For plasma application, a gas target divertor3 simulation experiment has been performed as a feasibility study. A target has been mounted at the end of Cusp system and dynamic surface temperature has been measured by IR camera. End loss ion current also has been measured. The system configuration and experimental result will be presented