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Division Spotlight
Young Members Group
The Young Members Group works to encourage and enable all young professional members to be actively involved in the efforts and endeavors of the Society at all levels (Professional Divisions, ANS Governance, Local Sections, etc.) as they transition from the role of a student to the role of a professional. It sponsors non-technical workshops and meetings that provide professional development and networking opportunities for young professionals, collaborates with other Divisions and Groups in developing technical and non-technical content for topical and national meetings, encourages its members to participate in the activities of the Groups and Divisions that are closely related to their professional interests as well as in their local sections, introduces young members to the rules and governance structure of the Society, and nominates young professionals for awards and leadership opportunities available to members.
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.”
A. Abdrashitov et al.
Fusion Science and Technology | Volume 47 | Number 1 | January 2005 | Pages 27-34
Technical Paper | Open Magnetic Systems for Plasma Confinement | doi.org/10.13182/FST05-A604
Articles are hosted by Taylor and Francis Online.
In the recent experiments, on-axis transverse beta exceeding 0.4 in the fast ion turning points near the end mirrors has been achieved in the GDT experiment with 4 MW injection of 15-17 keV deuterium neutral beams at the center of the device. Neither enhanced transverse losses of the plasma nor anomalies in the fast ion scattering and slowing down were observed. The measured beta value is close to that needed in the versions of the GDT-based 14 MeV neutron source. At the same time, the electron temperature for given injection power and pulse duration is limited to 100-130eV. Its further increase is planned after upgrade of the injection system and increase of the magnetic field at the center of device up to 0.3T. Upgrade of the injection system assumes that neutral beam power incident on to the plasma will be increased up to 9-10 MW and pulse duration is extended from 1.2 to 5 ms. According to the results of numerical simulations, for the extended pulse duration a plasma steady state will be achieved with electron temperature of 250-320 eV, depending upon the assumptions on the transverse energy loss rate. Future experiments on the GDT-upgrade are discussed in the paper.