Density Limits with Different Fuelling Methods in the HL-2A Tokamak

Autor: Cao Zeng, Chen Chengyuan, Yan Longwen, Dong Yun-Bo, Li Wei, Zhou Yan, Song Xianming, Duan Xu-Ru, Yang Qingwei, Hong Wenyu
Rok vydání: 2009
Předmět:
Zdroj: Plasma Science and Technology. 11:385-388
ISSN: 1009-0630
DOI: 10.1088/1009-0630/11/4/03
Popis: Density limits with different fuelling methods have been compared in HL-2A, i.e. direct gas puffing and supersonic molecular beam injection (SMBI) from outer midplane, and divertor gas fuelling. The maximum densities for low current discharges are 3.4×1019 m−3, 4.3×1019 m−3 and 4.7×1019 m−3 for the 3 kinds of fuelling methods. The corresponding density ratios to Greenwald density limit are 0.9, 1.1, 1.2, respectively. The behavior of density limit disruption is analyzed as well.
Databáze: OpenAIRE