Experimental measurement of electron particle diffusion from sawtooth-induced density-pulse propagation in the Texas Experimental Tokamak
- 15 February 1988
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 60 (7), 577-580
- https://doi.org/10.1103/physrevlett.60.577
Abstract
Electron density perturbations produced by sawtooth oscillations in the interior of the Texas Experimental Tokamak are measured with a high-resolution, multichannel, far-infrared interferometer. Abel inversion over the sawtooth perturbation indicates a space-time evolution which is diffusive in character. The diffusion coefficient is determined from a density-pulse–propagation model and found to be appreciably larger than equilibrium values.Keywords
This publication has 14 references indexed in Scilit:
- A measurement of hydrogen ion transport parameters in Tokamak dischargesPlasma Physics and Controlled Fusion, 1987
- Anomalous transport and the coupling of plasma diffusion and heat flowPhysical Review Letters, 1987
- Inference of electron heat conductivity from the propagation of a temperature perturbation in the outer confinement region of a TokamakNuclear Fusion, 1986
- Rapid Collapse of a Plasma Sawtooth Oscillation in the JET TokamakPhysical Review Letters, 1986
- Heat pulse propagation studies in TFTRNuclear Fusion, 1986
- Sawtooth oscillationsPlasma Physics and Controlled Fusion, 1986
- Double-sawtooth oscillations in the Doublet III tokamakNuclear Fusion, 1985
- On measuring the electron heat diffusion coefficient in atokamak from sawtooth oscillation observationsNuclear Fusion, 1979
- Experimental Measurement of Electron Heat Diffusivity in a TokamakPhysical Review Letters, 1977
- Studies of Internal Disruptions andOscillations in Tokamak Discharges with Soft—X-Ray TecniquesPhysical Review Letters, 1974