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Division Spotlight
Operations & Power
Members focus on the dissemination of knowledge and information in the area of power reactors with particular application to the production of electric power and process heat. The division sponsors meetings on the coverage of applied nuclear science and engineering as related to power plants, non-power reactors, and other nuclear facilities. It encourages and assists with the dissemination of knowledge pertinent to the safe and efficient operation of nuclear facilities through professional staff development, information exchange, and supporting the generation of viable solutions to current issues.
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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Nuclear Technology
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.”
Malcolm W. McGeoch, Patrick A. Corcoran, Robert G. Altes, Ian D. Smith, Stephen E. Bodner, Robert H. Lehmberg, Stephen P. Obenschain, John D. Sethian
Fusion Science and Technology | Volume 32 | Number 4 | December 1997 | Pages 610-643
Technical Paper | Special Section: Plasma Control Issues for Tokamaks / ICF Driver Technology | doi.org/10.13182/FST97-A19908
Articles are hosted by Taylor and Francis Online.
A detailed KrF amplifier model is first benchmarked against new data and then used to design higher-energy modules with segmented pumping. It is found that segmentation with unpumped regions does not carry with it any penalty in efficiency because the distributed geometry has reduced losses from amplified spontaneous emission (ASE) that counteract the fluorine absorption of unpumped regions. A 68-kJ module is designed, incorporating a new water line geometry and a combined switch/bushing. The electrical parameters of the module are calculated in detail. The effect of multiplexed beam-line energy on facility size is discussed, and an energy of 100 to 200 kJ is found to be optimal. Two 68-kJ modules are combined in a 136-kJ multiplexed beam line, incorporating incoherent spatial imaging, that fits within a compact beam tunnel. A total of 16 such beam lines are arranged on four floors to deliver 64 beams to a target; the net energy is 2.0 MJ. Detailed calculations of prepulse ASE energy are given, and the levels are designed to be low enough not to initiate a prepulse plasma. The basic geometrical uniformity of target illumination is shown to be better than 0.3% for a 64-beam illumination geometry that has a high degree of symmetry. A test of the 68-kJ module would be necessary to verify the projected specific laser energy and facilitate more detailed design of this fusion laser.