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Division Spotlight
Isotopes & Radiation
Members are devoted to applying nuclear science and engineering technologies involving isotopes, radiation applications, and associated equipment in scientific research, development, and industrial processes. Their interests lie primarily in education, industrial uses, biology, medicine, and health physics. Division committees include Analytical Applications of Isotopes and Radiation, Biology and Medicine, Radiation Applications, Radiation Sources and Detection, and Thermal Power Sources.
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.”
Maxime Rabeau, John H. Pitts, Jean-François Mengué, Gérard Maurin
Fusion Science and Technology | Volume 23 | Number 3 | May 1993 | Pages 337-341
Techincal Note | ICF Driver Technology | doi.org/10.13182/FST23-337
Articles are hosted by Taylor and Francis Online.
Geometrical arrangements for locating the large number of beamlets used in high-energy laser fusion facilities around a target chamber, suitable for the 1- to 2-MJ Phebus upgrade facility, are compared. The beamlets are clustered together and enter the target chamber area from two opposite poles. Beamlets from two different amplifier regions are interlaced around four pairs of conical surfaces, so that more symmetrical illumination of indirect drive targets is possible even when only some of the amplifiers are operational. A passive system is proposed to protect the focus lenses from X rays, ion debris, and internal target chamber pollutants. The system includes sacrificial debris shields and a static, ∼2-m length of incondensable gas. A crosswise orientation allows for maximum operational flexibility; an in-line orientation uses three fewer mirrors per beamlet but requires a larger target chamber room and longer laser bays. Neutron protection includes concrete shielding and also an ∼1- to 2-m-thick water shield positioned just inside the periphery of the target chamber room. Selected low-activation materials are used as much as possible inside the water shield to minimize the recovery time after a shot.