Control and Data Acquisition System for KSTAR ICRF
- Korea Atomic Energy Research Institute, 150 Dukjin, Daejeon 305-353 (Korea, Republic of)
An ICRF discharge cleaning and a plasma heating experiment were performed in KSTAR toka-mak. For an automated operation and the diagnostics of the ICRF system, the ICRF local network was designed and implemented. This internal network provides monitoring, RF protection, remote control and RF diagnostics. All the functions of the control system were realized by customized DSP units. The DSP units were tied by a local network in parallel. For RF diagnostics, a detector based on digital I/Q demodulation technique was fabricated. The I/Q detector collects the RF amplitude and phase at the same time without errors from I/Q imbalance inherent in an analog counterpart. During the first experimental campaign of the KSTAR tokamak, the control system was operated as expected without any major problems such as affecting the tokamak operation. The transmitter was protected from the harmful over-voltage events through a reliable operation of the system. Details of ICRF control system and RF detecting technique with a brief experimental result will be presented.
- OSTI ID:
- 21335733
- Journal Information:
- AIP Conference Proceedings, Vol. 1187, Issue 1; Conference: 18. topical conference on radio frequency power in plasmas, Gent (Belgium), 24-26 Jun 2009; Other Information: DOI: 10.1063/1.3273756; (c) 2009 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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