2007•Plasma Science and TechnologyOpen access

Preliminary Results of Sawtooth Behaviour and Electron Heat Transport During ECRH Experiment on HL-2A

Shi Zhongbing, Ding Xuan-Tong, Jun Rao, Li Ying-Liang, Deng Wei, Liu Zetian, Yi Liu, Zhou Yan

Abstract

An electron cyclotron resonance heating (ECRH) system with a maximum output power of 1 MW, a frequency of 68 GHz and a duration of 1s was operated on HL-2A tokamak. The temperature profile control and the sawtooth behaviour during ECRH experiments are investigated. `Density pumpout' during on-axis ECRH is analysed. Features of confinement and electron heat transport during ECRH are studied.

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Key concepts: Sawtooth wave, Tokamak, Electron cyclotron resonance, Cyclotron, Electron temperature, Electron, Atomic physics, Materials science