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Title: High power local ECH in CHS

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.}
Authors:
; ; ; ; ; ; ; ; ; ; ; ; ;  [1]
  1. National Institute for Fusion Science and School of Mathematical and Physical Science, General University for Advanced Studies, Nagoya, 464-01 (Japan)
Publication Date:
OSTI Identifier:
284128
Report Number(s):
CONF-9505105--
Journal ID: APCPCS; ISSN 0094-243X; TRN: 96:021724
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 355; Journal 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
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION; ECR HEATING; ANTENNAS; GHZ RANGE 01-100; PLASMA CONFINEMENT; HELICAL CONFIGURATION; ELECTRON TEMPERATURE; ELECTRON DENSITY