Improved Confinement with Reversed Magnetic Shear in TFTR
- 11 December 1995
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 75 (24) , 4417-4420
- https://doi.org/10.1103/physrevlett.75.4417
Abstract
A new tokamak confinement regime has been observed on the Tokamak Fusion Test Reactor (TFTR) where particle and ion thermal diffusivities drop precipitously by a factor of ∼40 to the neoclassical level for the particles and to much less than the neoclassical value for the ions in the region with reversed shear. This enhanced reversed shear confinement mode allows the central electron density to rise from 0.45 × to ∼1.2 × with keV and keV. This regime holds promise for significantly improved tokamak performance.
Keywords
This publication has 24 references indexed in Scilit:
- Survey of pellet enhanced performance in JET dischargesNuclear Fusion, 1995
- High Beta and Enhanced Confinement in a Second Stable Core VH-Mode Advanced TokamakPhysical Review Letters, 1995
- Advanced tokamak physics-status and prospectsPlasma Physics and Controlled Fusion, 1994
- Improved plasma performance in tokamaks with negative magnetic shearPhysical Review Letters, 1994
- Improved confinement in high lilower hybrid driven steady state plasmas in TORE SUPRANuclear Fusion, 1994
- Shear reversal and MHD activity during pellet enhanced performance pulses in JETNuclear Fusion, 1992
- Higher beta at higher elongation in the DIII-D tokamakPhysics of Fluids B: Plasma Physics, 1991
- Magnetohydrodynamic theory of plasma equilibrium and stability in stellarators: Survey of resultsPhysics of Fluids, 1983
- High-TokamaksPhysical Review Letters, 1977
- Finite-β Stabilization of the Collisionless Trapped Particle InstabilityPhysics of Fluids, 1971