Speaker
Mr
Xiang Gao
(China)
Description
The particle diffusion coefficient and the convection velocity have been studied by means of the density modulation using pulsed deuterium gas puffing on the HT-7 tokamak. It was observed in AC plasmas that the particle transport coefficient and confinement time of the positive current plasma is different from that of the negative current plasma (Gao X et al 2008 Nucl. Fusion 48 035009) on HT-7 tokamak. New experimental result improved our understanding in AC plasma operation on HT-7 tokamak. It was found that the particle confinement time becomes much higher when the directions of plasma current and toroidal field are uniform. Recently, the density modulation experiments are carried out with advanced liquid lithium limiter on HT-7 tokamak. The interesting results are compared and discussed in detail with previous results under the graphite limiter on HT-7 tokamak.
Country or International Organization of Primary Author
Chinese Atomic Energy Authority
Primary author
Mr
Xiang Gao
(China)
Co-authors
Dr
Haiqing Liu
(Institute of Plasma Physics, Chinese Academy of Sciences)
Ms
Jie Shen
(Institute of Plasma Physics, Chinese Academy of Sciences)
Prof.
Kenji Tanaka
(National Institute for Fusion Science, Japan)
Dr
Long Zeng
(Institute of Plasma Physics, Chinese Academy of Sciences)
Mr
Wei Liao
(Institute of Plasma Physics, Chinese Academy of Sciences)
Mr
Xiaofeng Han
(Institute of Plasma Physics, Chinese Academy of Sciences)
Mr
Yao Yang
(Institute of Plasma Physics, Chinese Academy of Sciences)
Prof.
Yinxian Jie
(Institute of Plasma Physics, Chinese Academy of Sciences)
Mr
Zixi Liu
(Institute of Plasma Physics, Chinese Academy of Sciences)
