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Experimental investigation of kinetic instabilities driven by runaway electrons in the EXL-50 spherical torus
Mingyuan Wang, Mingsheng Tan, Yuejiang Shi +8
In this study, the first observation of high-frequency instabilities driven by runaway electrons has been reported in the EXL-50 spherical torus using a high-frequency magnetic pic…
Observation of whistler wave instability driven by temperature anisotropy of energetic electrons on EXL-50 spherical torus
Mingyuan Wang, Yuejiang Shi, Jiaqi Dong +19
Electromagnetic modes in the frequency range of 30-120MHz were observed in electron cyclotron wave (ECW) steady state plasmas on the ENN XuanLong-50 (EXL-50) spherical torus. These…
Observation of a strong correlation between the positive floating potential near the edge and plasma current on EXL-50 ECW plasma
Mingyuan Wang, Dong Guo, Xin Zhao +12
Fully non-inductive plasma current start-up without the central solenoid in ECW plasma was used on EXL-50 Spherical Torus with a weak external vertical field (Bv). Generally, the n…
Non-inductive plasma current sustainment with stochastic electron cyclotron in EXL-50 spherical torus
Mingyuan Wang, Shikui Cheng, Bing Liu +11
The start-up and sustainment of a stochastic wave non-inductive current on a spherical torus was experimentally demonstrated for the first time using only electron cyclotron waves.…