Safety factor on the axis of a tokamak during Ohmically heated sawtoothing discharges from a localized measurement of circular polarization of the Lii 6708 Å line
Authors:
- 1 April 1990
- journal article
- research article
- Published by AIP Publishing in Physics of Fluids B: Plasma Physics
- Vol. 2 (4) , 809-814
Abstract
Analysis of the circular polarization of the Lii 6708 Å line emitted from a monoenergetic lithium beam provides a spatially resolved measurement of the poloidal magnetic field on the Texas experimental tokamak [Nucl. Technol. Fusion 1, 479 (1989)]. Determined from the measured magnetic field, the safety factor on the magnetic axis during Ohmically heated sawtoothing discharges is near unity.Keywords
This publication has 19 references indexed in Scilit:
- Determination of the Poloidal Magnetic Field Profiles in a Tokamak by Polarization Spectroscopy of an Impurity Ion LinePhysical Review Letters, 1988
- Nonlinear evolution of the internal kink mode in toroidal geometry for shaped tokamak plasmasThe Physics of Fluids, 1988
- Persistent density perturbations at rational-qsurfaces following pellet injection in the Joint European TorusPhysical Review Letters, 1987
- Mechanism for rapid sawtooth crashes in tokamaksPhysical Review Letters, 1987
- The fast crash of the central temperature during sawteeth in tokamaksThe Physics of Fluids, 1987
- Temporal behavior of the plasma current distribution in the ASDEX tokamak during lower-hybrid current drivePhysical Review Letters, 1987
- Sawtooth stabilization through island pressure enhancementThe Physics of Fluids, 1987
- Radially resolved measurements of ’’q’’ on the adiabatic toroidal compressor tokamakThe Physics of Fluids, 1978
- Internal Kink Modes in Toroidal Plasmas with Circular Cross SectionsPhysical Review Letters, 1975
- Studies of Internal Disruptions andOscillations in Tokamak Discharges with Soft—X-Ray TecniquesPhysical Review Letters, 1974