mao jian shan, zhao jun yu, shen biao, et al. Improved plasma confinement by modulated toroidal current on HT7 superconducting Tokamak[J]. High Power Laser and Particle Beams, 2004, 16.
Citation:
mao jian shan, zhao jun yu, shen biao, et al. Improved plasma confinement by modulated toroidal current on HT7 superconducting Tokamak[J]. High Power Laser and Particle Beams, 2004, 16.
mao jian shan, zhao jun yu, shen biao, et al. Improved plasma confinement by modulated toroidal current on HT7 superconducting Tokamak[J]. High Power Laser and Particle Beams, 2004, 16.
Citation:
mao jian shan, zhao jun yu, shen biao, et al. Improved plasma confinement by modulated toroidal current on HT7 superconducting Tokamak[J]. High Power Laser and Particle Beams, 2004, 16.
The improved confinement phase was observed during modulating toroidal current on the Hefei superconducting Tokamak7 (HT7 ). This improved plasma confinement phase is characterized by suppressing magnetohydrodynamic (MHD) instabilities effectively thus increased the central line averaged electron density and the central electron temperature about 33%, output steeper density profiles, and reduced hydrogen radiation from the edge as well. The global energy confinement time was increased by 27%~45%; The impurity radiation was reduced by modulation of plasma toroidal current; Particle confinement time was increased about two times; A more strong radial negative electric field formed inside the limiter. The radial electric field during modulating current was calculated and disscussed.