The Experiment of Modulated Toroidal Current on HT-7 and HT-6M Tokamak
Plasma Science & Technology/Plasma science and technology(2003)
Abstract
The Experiments of Modulated Toroidal Current were done on the HT-6M tokamak and HT-7 superconducting tokamak. The toroidal current was modulated by programming tire Ohmic heating field. Modulation of the plasma current has been used Successfully to suppress MHD activity in discharges near the density limit where large MHD m = 2 tearing modes were suppressed by sufficiently large plasma current oscillations. The improved Ohmic confinement phase was observed during modulating toroidal current (MTC) on the Hefei Tokamak-6M (HT-6M) and Hefei superconducting Tokamak-7 (HT-7). A toroidal frequency-modulated current, induced by a modulated loop voltage, was added on the plasma equilibrium current. The ratio of A.C. amplitude of plasma current to the main plasma current DeltaI(p)/I-p is about 12% similar to 30%. The different formats of the frequency-modulated toroidal current were compared.
MoreTranslated text
Key words
modulated toroicdal current,superconducting tokamak
AI Read Science
Must-Reading Tree
Example
Generate MRT to find the research sequence of this paper
Chat Paper
Summary is being generated by the instructions you defined