The effect of gas puffing on plasma during slide-away discharge in the HT-7 tokamak
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Published:2012
Issue:7
Volume:61
Page:075202
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ISSN:1000-3290
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Container-title:Acta Physica Sinica
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language:
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Short-container-title:Acta Phys. Sin.
Author:
Lu Hong-Wei ,Zha Xue-Jun ,Hu Li-Qun ,Lin Shi-Yao ,Zhou Rui-Jie ,Luo Jia-Rong ,Zhong Fang-Chuan , ,
Abstract
In tokamak plasma, the discharge will turn into runaway discharge from normal discharge if the plasma density becomes very low. The discharge will enter into slide-away discharge if the density decays to a critical one, in which the confinement of plasma (exactly supper thermal electrons) is better than that in normal discharge. The confinement of plasma and the anomalous Doppler instability during slide-away discharge gas puffing are investigated. The effect of gas puffing on runaway electrons during slide-away discharge is also studied in this paper. It is found that the anomalous Doppler instability can be suppressed by the gas puffing during slide-away discharge, while the confinement of plasma becomes poor, and many high energy runaway electrons occur during gas puffing.
Publisher
Acta Physica Sinica, Chinese Physical Society and Institute of Physics, Chinese Academy of Sciences
Subject
General Physics and Astronomy
Cited by
1 articles.
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