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Decommissioning & Environmental Sciences
The mission of the Decommissioning and Environmental Sciences (DES) Division is to promote the development and use of those skills and technologies associated with the use of nuclear energy and the optimal management and stewardship of the environment, sustainable development, decommissioning, remediation, reutilization, and long-term surveillance and maintenance of nuclear-related installations, and sites. The target audience for this effort is the membership of the Division, the Society, and the public at large.
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.”
Hajime Suzuki, Akio. Sagara, Nobuyoshi Ohyabu, Osamu Motojima
Fusion Science and Technology | Volume 27 | Number 3 | April 1995 | Pages 523-526
Plasma Particle and Heat Control Studies | doi.org/10.13182/FST95-A11962955
Articles are hosted by Taylor and Francis Online.
Carbon Sheet Pump(CSP) has been proposed to be installed on the vacuum vessel wall of the Large Helical Device(LHD) in order to reduce the hydrogen recycling and improve the energy confinement.
The CSP of C/C composite with temperature below 200 °C can pump high energy hydrogen particles such as charge exchange fast neutrals by trapping them. The saturated hydrogen particles can be removed simply by heating the carbon sheet above 800 °C. One of the requirement on the CSP design for LHD is that the temperature of the vacuum vessel must be maintained to be below 70 °C to avoid excessive heat flux to the LHD superconducting magnet system.
The first design of CSP for LHD is presented, and a successful demonstration of heating the CSP carried out.