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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. S. Udintsev, G. Vayakis, A. E. Costley, K. M. Patel, C. S. Pitcher, C. I. Walker, M. J. Walsh, M. Benchikhoune, D. Bora, A. Dammann, M. A. Henderson, B. Levesy, A. Tesini, S. Danani, H. Pandya, P. Vasu, M. E. Austin, P. E. Phillips, W. L. Rowan, R. Feder, D. Johnson
Fusion Science and Technology | Volume 59 | Number 4 | May 2011 | Pages 678-683
Technical Paper | Sixteenth Joint Workshop on Electron Cyclotron Emission and Electron Cyclotron Resonance Heating (EC-16) | doi.org/10.13182/FST11-A11733
Articles are hosted by Taylor and Francis Online.
This paper explains the present status of the ITER electron cyclotron emission (ECE) diagnostic and gives an outlook on the upcoming technical and design activity. The open questions of calibration and stability of ECE systems, as well as proposals for the calibration, the design of the front end, and the transmission line are reviewed. The possible role of ECE in the neoclassical tearing mode detection and stabilization by electron cyclotron heating is also discussed. Because integration of the ITER ECE diagnostic within the tokamak requires proper definition of interfaces with many different components located both in-vessel and ex-vessel, a special attention is paid to address the associated issues.