Status of KSTAR 170 GHz, 1 MW Electron Cyclotron Heating and Current Drive System

Journal Article · Fri Dec 23 00:00:00 EST 2011 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3664956· OSTI ID:21612476

Joung, M; Bae, Y S; Jeong, J H; Park, S; Kim, H J; Yang, H L ^[1]; Park, H; Cho, M H; Namkung, W ^[2]; Hosea, J; Ellis, R ^[3]; Sakamoto, K; Kajiwara, K ^[4]; Doane, J ^[5]

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1. National Fusion Research Institute, Daejeon (Korea, Republic of)
2. Pohang University of Science and Technology, Pohang (Korea, Republic of)
3. Princeton Plasma Physics Laboratory, Princeton (United States)
4. Japan Atomic Energy Agency, Ibaraki (Japan)
5. General Atomics, San Diego (United States)

A 170 GHz Electron Cyclotron Heating and Current Drive (ECH/CD) system on KSTAR is designed to launch total 2.4 MW of power for up to 300 sec into the plasma. At present the first 1 MW ECH/CD system is under installation and commissioning for 2011 KSTAR campaign. The 170 GHz, 1 MW, 300 sec gyrotron and the matching optics unit (MOU) will be provided from JAEA under collaboration between NFRI and JAEA. The transmission line consists of MOU and 70 m long 63.5 mm ID corrugated waveguides with the eight miter bends. The 1 MW, 10 sec launcher is developed based on the existing two-mirror front-end launcher in collaboration with Princeton Plasma Physics Laboratory and Pohang University of Science and Technology, and is installed on the low field side in the KSTAR equatorial plane. The mirror pivot is located at 30 cm below from the equatorial plane. 3.6 MVA power supply system is manufactured and now is under commissioning to meet the triode gun operation of JAEA gyrotron. The power supply consists of 66 kV/55 A cathode power supply, mode-anode system, and 50 kV/160 mA body power supply. In this paper, the current status of KSTAR 170 GHz, 1 MW ECH/CD system will be presented as well as the experimental plan utilizing 170 GHz new ECH/CD system.

• OSTI ID: 21612476
• Journal Information: AIP Conference Proceedings, Vol. 1406, Issue 1; Conference: 9. topical conference on radio frequency power in plasmas, Newport (United States), 1-3 Jun 2011; Other Information: DOI: 10.1063/1.3664956; (c) 2011 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ANODES
CATHODES
COMMISSIONING
ECR CURRENT DRIVE
ECR HEATING
ELECTRIC CURRENTS
GHZ RANGE
JAEA
MAGNETOHYDRODYNAMICS
MIRRORS
OPERATION
PLASMA
POWER TRANSMISSION LINES
WAVEGUIDES
CURRENTS
ELECTRODES
FLUID MECHANICS
FREQUENCY RANGE
HEATING
HIGH-FREQUENCY HEATING
HYDRODYNAMICS
JAPANESE ORGANIZATIONS
MECHANICS
NATIONAL ORGANIZATIONS
NON-INDUCTIVE CURRENT DRIVE
PLASMA HEATING