Pellet and Molecular Beam Injection Fueling on the HL-1M Tokamak

Journal Article · Wed Jan 15 00:00:00 EST 2003 · Fusion Science and Technology

OSTI ID:20845872

Zhenggui, Xiao; Bo, Li; Li, Li; Dequan, Liu; Lianghua, Yao; Jiafu, Dong; Gancheng, Guo; Zhongchao, Deng; Yinjia, Zheng; Wenyu, Hong; Longwen, Yan; Yi, Liu; Yong, Liu; Wang, Enyao ^[1]

---

1. Southwestern Institute of Physics (China)

The Eight-shot Pellet Injector (EPI) and Molecular Beam Injector (MBI) as new plasma fueling methods have been developed and installed on the HL-1M tokamak for fueling experiments. The main structures and characteristics of the fueling device and the typical fueling experimental results with EPI and the MBI are reported. In these experiments, typical responses of plasma in discharges with PI and MBI are the peaked density profile Q{sub n} n{sub e}(0)/<(n{sub e})> of >1.65 for MBI and of 2 for PI. The improvement of confinement time E is usually better than 10 to 30% of Gas Puffing (GP) discharge in the same operation condition. In addition, the penetration depth and deposition region of fueling particles, the variance of soft X-ray sawteeth, the rotation and flow of plasma in edge region as well as the photographing of ablation clouds with PI and MBI are compared and presented in this paper.

• OSTI ID: 20845872
• Journal Information: Fusion Science and Technology, Vol. 43, Issue 1; Other Information: Copyright (c) 2006 American Nuclear Society (ANS), United States, All rights reserved. http://epubs.ans.org/; Country of input: International Atomic Energy Agency (IAEA); ISSN 1536-1055
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
BEAM INJECTION
CONFINEMENT TIME
ELECTRON DENSITY
HL-1M TOKAMAK
MOLECULAR BEAMS
PELLET INJECTION
PENETRATION DEPTH
PLASMA
SAWTOOTH OSCILLATIONS