Present Progress of Plasma Transport Study on HL-2A

Xuantong DING; Weiwen XIAO; Xiaolan ZOU; Hongjuan SUN; Yi LIU; Lianghua YAO; Jun RAO; Beibing FENG; Zetian LIU; Yan ZHOU; Qingwei YANG; Longwen YAN; Jiaqi DONG; Xuru DUAN; HL-2A team

doi:10.1585/pfr.5.S1013

Regular Articles

Present Progress of Plasma Transport Study on HL-2A

Xuantong DING, Weiwen XIAO, Xiaolan ZOU, Hongjuan SUN, Yi LIU, Lianghua YAO, Jun RAO, Beibing FENG, Zetian LIU, Yan ZHOU, Qingwei YANG, Longwen YAN, Jiaqi DONG, Xuru DUAN, HL-2A team

Author information

Xuantong DING
Southwestern Institute of Physics, P.O. Box 432, Chengdu, China
Weiwen XIAO
Southwestern Institute of Physics, P.O. Box 432, Chengdu, China
Xiaolan ZOU
Association Euratom-CEA, CEA/DSM/IRFM, CEA/Cadarache, 13018 St Paul-lez-Durance, France
Hongjuan SUN
Southwestern Institute of Physics, P.O. Box 432, Chengdu, China
Yi LIU
Southwestern Institute of Physics, P.O. Box 432, Chengdu, China
Lianghua YAO
Southwestern Institute of Physics, P.O. Box 432, Chengdu, China
Jun RAO
Southwestern Institute of Physics, P.O. Box 432, Chengdu, China
Beibing FENG
Southwestern Institute of Physics, P.O. Box 432, Chengdu, China
Zetian LIU
Southwestern Institute of Physics, P.O. Box 432, Chengdu, China
Yan ZHOU
Southwestern Institute of Physics, P.O. Box 432, Chengdu, China
Qingwei YANG
Southwestern Institute of Physics, P.O. Box 432, Chengdu, China
Longwen YAN
Southwestern Institute of Physics, P.O. Box 432, Chengdu, China
Jiaqi DONG
Southwestern Institute of Physics, P.O. Box 432, Chengdu, China
Xuru DUAN
Southwestern Institute of Physics, P.O. Box 432, Chengdu, China
HL-2A team
Southwestern Institute of Physics, P.O. Box 432, Chengdu, China

Keywords: particle transport barrier, non-local transport, supersonic molecular beam injection, electron cyclotron heating

JOURNAL FREE ACCESS

2010 Volume 5 Pages S1013

DOI https://doi.org/10.1585/pfr.5.S1013

Details

Abstract

The recent experiments of HL-2A tokamak have been focused on studying the physics of turbulence and transport. A spontaneous particle transport barrier has been observed in Ohmic discharges without any external momentum input. The barrier was evidenced by density perturbation study using modulated supersonic molecular beam injection (SMBI) and microwave reflectometry. The new features of the non-local transport effect induced with SMBI have been analyzed. The suppression of m/n = 2/1 tearing modes may be sustained by ECRH modulation at a frequency about 10 Hz. Continuous confinement improvement was observed after the mode suppression.

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