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The Radiation Protection and Shielding Division is developing and promoting radiation protection and shielding aspects of nuclear science and technology — including interaction of nuclear radiation with materials and biological systems, instruments and techniques for the measurement of nuclear radiation fields, and radiation shield design and evaluation.
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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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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 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. 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.”
V. V. Arsenin, P. N. Terekhin
Fusion Science and Technology | Volume 59 | Number 1 | January 2011 | Pages 193-195
doi.org/10.13182/FST11-A11606
Articles are hosted by Taylor and Francis Online.
Conditions for convective plasma stability in a system of coupled axisymmetric open traps with sign-alternative curvature of magnetic field are analyzed both in the MHD model and the Kruskal–Obereman kinetic model. For a couple of nonparaxial simple mirror cell and a semicusp, the “radial' interval where a hollow plasma can be stable is determined, as well as the range in which the ratio of the pressures in component cells should lie. Both external and internal plasma boundaries are stable in accordance with the average minB principle, provided that the pressure profiles in the cells are made consistent. The plasma compressibility plays an essential role. The stability of the cells against the global mode (as in the Ryutov–Stupakov trap) is sufficient but not necessary for stabilizing the chain. For the couple under consideration, the stability margin is not small.