论文信息 - Observation of neoclassical transport in reverse shear plasmas on TFTR

Observation of neoclassical transport in reverse shear plasmas on TFTR

Perturbative experiments on TFTR have investigated the transport of multiple ion species in reverse shear (RS) plasmas. The profile evolutions of trace tritium and helium and intrinsic carbon indicate the formation of core particle transport barriers in enhanced reverse shear (ERS) plasmas. There is an order of magnitude reduction in the particle diffusivity inside the RS region. The diffusivities for these species in ERS plasmas agree with neoclassical theory.

[1] D. McCune,et al. Observation of particle transport barriers in reverse shear plasmas on the Tokamak Fusion Test Reactor , 1998 .

[2] Yoshihiko Koide,et al. Progress in confinement and stability with plasma shape and profile control for steady-state operation in the Japan Atomic Energy Research Institute Tokamak-60 Upgrade , 1997 .

[3] Evaluation of current drive requirements and operating characteristics of a high bootstrap fraction advanced Tokamak reactor , 1994 .

[4] Johnson,et al. Tritium particle transport experiments on TFTR during D-T operation. , 1995, Physical Review Letters.

[5] Beer,et al. Turbulent Fluctuations in TFTR Configurations with Reversed Magnetic Shear. , 1996, Physical review letters.

[6] E. D. Fredrickson,et al. Improved confinement with reversed magnetic shear in TFTR. , 1995 .

[7] W. Houlberg,et al. Bootstrap current and neoclassical transport in tokamaks of arbitrary collisionality and aspect ratio , 1997 .

[8] G. Taylor,et al. Roles of Electric Field Shear and Shafranov Shift in Sustaining High Confinement in Enhanced Reversed Shear Plasmas on the TFTR Tokamak , 1997 .

[9] Lao,et al. Enhanced confinement and stability in DIII-D discharges with reversed magnetic shear. , 1995, Physical review letters.