THE ELECTRON CYCLOTRON RESONANCE HEATING EXPERIMENTS ON HL-1 TOKAMAK

doi:10.1088/1004-423X/4/1/006

Abstract

Abstract The electron cyclotron resonance heating (ECRH) experiments on HL-1 tokamak with 300kW of power generated by a gyrotron are described. With ECE diagnostics, a 30% increase of electron temperature has been obtained. The following phenomena have been observed with various diagnostics during ECRH: increase of radiation intensity of soft X-ray; amplitude change and period elongation of sawtooth oscillation; MHD instability suppression; increase of H$\alpha$ spectral fine intensity and ionized impurity radiation from edge plasma; increase of the temperature and density of edge plasma. Although the total plasma energy content increases, the energy confinement time is decreased. Initial results of low voltage start-up experiments have also been obtained.

Received: 09 November 1993
Revised: 20 April 1994
Accepted manuscript online:

PACS:	52.50.Sw	(Plasma heating by microwaves; ECR, LH, collisional heating)
	52.55.Fa	(Tokamaks, spherical tokamaks)
	52.70.La	(X-ray and γ-ray measurements)
	52.30.Cv	(Magnetohydrodynamics (including electron magnetohydrodynamics))
	52.35.Qz	(Microinstabilities (ion-acoustic, two-stream, loss-cone, beam-plasma, drift, ion- or electron-cyclotron, etc.))
	52.40.Hf	(Plasma-material interactions; boundary layer effects)

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XU YAO-CONG (徐耀聪), XUE SI-WEN (薛思文), LIU YONG (刘永), XU DE-MING (徐德明), GUO GAN-CHENG (郭干城), DING XUAN-TONG (丁玄同), CHEN MIAO-WEN (陈妙文), YU LI-MU (余利木), JIANG XIU-FANG (蒋秀芳), LI XIAO-DONG (李晓东), DENG XI-WEN (邓希文), WANG EN-YAO (王恩耀), YANG SI-ZE (杨思泽), YAO XIN-ZI (姚鑫兹), V.V.ROZHDESTVENSK, B.V.SHISHKIN, V.I.MALYGIN THE ELECTRON CYCLOTRON RESONANCE HEATING EXPERIMENTS ON HL-1 TOKAMAK 1995 Acta Physica Sinica (Overseas Edition) 4 39

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