Fluctuation and modulation transport studies in the Advanced Toroidal Facility (ATF) torsatron*
- 1 July 1993
- journal article
- research article
- Published by AIP Publishing in Physics of Fluids B: Plasma Physics
- Vol. 5 (7) , 2513-2518
- https://doi.org/10.1063/1.860737
Abstract
The Advanced Toroidal Facility (ATF) torsatron [Fusion Technol. 10, 179 (1986)] has completed experiments focusing on microwave scattering measurements of density fluctuations and transport studies utilizing the modulation of dimensionless parameters. Microwave scattering measurements of electron density fluctuations in the core of low‐collisionality electron cyclotron heated (ECH) plasmas show features that might be evidence of trapped electron instabilities. Starting from gyro‐Bohm scaling, the additional dependence of confinement on the dimensionless parameters ν* and β (collisionality and beta) has been investigated by modulating each of these parameters separately, revealing the additional favorable dependence, τE∝τgBν*−0.18β+0.3.Keywords
This publication has 15 references indexed in Scilit:
- Two-dimensionality in low-magnetic Reynolds number magnetohydrodynamic turbulence subjected to a uniform external magnetic field and randomly stirred two-dimensional forcePhysics of Fluids A: Fluid Dynamics, 1992
- Dissipative trapped electron modes in l=2 torsatronsPhysics of Fluids B: Plasma Physics, 1992
- Density fluctuation measurements in ATF using correlation reflectometryNuclear Fusion, 1992
- Plasma fluctuations near the shear layer in the ATF torsatronNuclear Fusion, 1991
- Recent results from the ATF torsatronPhysics of Fluids B: Plasma Physics, 1991
- Bootstrap-current experiments in a toroidal plasma-confinement devicePhysical Review Letters, 1991
- Structure determination of the Si(111):B(√3×√3)R30° surface: Subsurface substitutional dopingPhysical Review Letters, 1989
- Second stability in the ATF torsatronPhysical Review Letters, 1989
- Invariance principles and plasma confinementPlasma Physics and Controlled Fusion, 1988
- Scaling laws for plasma confinementNuclear Fusion, 1977