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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 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.”
T. Saito, Y. Tatematsu, Y. Imaizumi, E. Tsuda, T. Yasuoka, M. Ichimura, K. Ishii, I. Katanuma, K. Yatsu
Fusion Science and Technology | Volume 43 | Number 1 | January 2003 | Pages 167-171
Transport and Confinement | doi.org/10.13182/FST03-A11963586
Articles are hosted by Taylor and Francis Online.
For understanding of the plug potential generation in a tandem mirror, the potential structure of the whole plasma should be investigated. In particular, the potential structure from the plug-barrier cell to the end plate installed on the end wall of the vacuum vessel has physical import. The fundamental ECRH at the plug region generates an electromotive force by driving the axial flow of electrons. This electromotive force is divided into the positive plug potential and the negative end plate potential. This paper shows the variations of these potential with currents flowing through each region. The end plate potential increases with this current. Analysis of a current carrying sheath is applied to the end plate potential. The plug potential decreases with a radial ion current in the peripheral region of the plug-barrier cell. To illustrate this point, a plasma shot with NBI is examined in which a trapped plasma is generated in the cell.