High power local ECH in CHS

Journal Article · Thu Feb 01 00:00:00 EST 1996 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.49570· OSTI ID:284128

Kubo, S; Idei, H; Iwase, M; Ohkubo, K; Minami, T; Yamada, I; Narihara, K; Tanaka, K; Wilgen, J B; Murakami, M; Rasumussen, D A; Nishimura, K; Okamura, S; Matsuoka, K ^[1]

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1. National Institute for Fusion Science and School of Mathematical and Physical Science, General University for Advanced Studies, Nagoya, 464-01 (Japan)

Electron cyclotron heating (ECH) experiments with 200 kW and 400 kW gyrotrons at the frequency of 53.2 GHz have been performed in Compact Helical System (CHS). Microwave power from both gyrotrons is transmitted with quasi-optical transmission line and highly focused on the mid-plane of CHS. The main purpose of these experiments is to understand the heating and energy transport mechanisms in CHS at the low collisional regime. The combination of the magnetic field, focal position and polarization enables the investigation of the on/off axis local heating effect with fundamental and second harmonic ECH. {copyright} {ital 1996 American Institute of Physics.}

• Sponsoring Organization: USDOE
• OSTI ID: 284128
• Report Number(s): CONF-9505105-; ISSN 0094-243X; TRN: 96:021724
• Journal Information: AIP Conference Proceedings, Vol. 355, Issue 1; Conference: 11. topical conference on radio frequency in plasmas, Palm Springs, CA (United States), 17-19 May 1995; Other Information: PBD: Feb 1996
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION
ECR HEATING
ANTENNAS
GHZ RANGE 01-100
PLASMA CONFINEMENT
HELICAL CONFIGURATION
ELECTRON TEMPERATURE
ELECTRON DENSITY