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Reactor Physics
The division's objectives are to promote the advancement of knowledge and understanding of the fundamental physical phenomena characterizing nuclear reactors and other nuclear systems. The division encourages research and disseminates information through meetings and publications. Areas of technical interest include nuclear data, particle interactions and transport, reactor and nuclear systems analysis, methods, design, validation and operating experience and standards. The Wigner Award heads the awards program.
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Utility Working Conference and Vendor Technology Expo (UWC 2024)
August 4–7, 2024
Marco Island, FL|JW Marriott Marco Island
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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.”
Sandy Quan, Neil B. Morley, Mohamed A. Abdou
Fusion Science and Technology | Volume 39 | Number 2 | March 2001 | Pages 697-701
Chamber Technology | doi.org/10.13182/FST01-A11963320
Articles are hosted by Taylor and Francis Online.
One definition for the “damage limit” of a liquid metal surface used as a final optic for laser fusion power plants is the maximum energy flux that the liquid metal can withstand without any resulting spallation. Some preliminary calculations were performed by Moir to roughly estimate the damage limit by imposing the restriction of a 200°C surface temperature rise. Here, new 1D calculations that account for hydro-motion on the compressible time scales are presented, along with revised estimates of the damage limits for liquid aluminum, sodium, and mercury. Slow compression time scales (~20 ns) produced negative pressures in the liquid film on the order of MPa, and fast ignition time scales (~10 ps) yielded GPa pressures for the laser energy densities set out by Moir. For Na and Al the peak energy densities normal to the beam on the order of 5 to 10 J/cm2 were acceptable for fast ignition when 85° grazing incidence is assumed. Some experimental data on the generation and damping of surface waves resulting from surface ablation recoil is also presented, where large waves are seen to damp out after about 50 ms following the laser pulse.