Direct observation of potential profiles with a 200 keV heavy ion beam probe on the Compact Helical System
Authors:
- 1 May 1997
- journal article
- research article
- Published by AIP Publishing in Physics of Plasmas
- Vol. 4 (5) , 1357-1361
Abstract
In this paper we present space potential profiles directly observed in a toroidal helical plasma of the Compact Helical System (CHS) [K. Matsuoka et al., Proceedings, 12th International Conference on Plasma Physics and Controlled Nuclear Fusion, Nice, 1988 (International Atomic Energy Agency, Vienna, 1989), Vol. 2, p. 411], using a 200 keV heavy ion beam probe. The potential profiles exhibit widely varied characteristics, including positive and negative polarities for electron cyclotron and neutral beam-heated plasmas, respectively. The behavior of high-energy particles in the CHS plasmas are deduced from loss cone diagrams evaluated from the observed potential profiles.Keywords
This publication has 17 references indexed in Scilit:
- The role of the electric field in confinementPlasma Physics and Controlled Fusion, 1996
- Measurements of the space potential of electron cyclotron heated plasmas in the Advanced Toroidal FacilityIEEE Transactions on Plasma Science, 1994
- Transition of the radial electric field by electron cyclotron heating in the CHS heliotron/torsatronPhysical Review Letters, 1993
- Active control of beam trajectories for heavy ion beam probe on helical magnetic configurationsReview of Scientific Instruments, 1992
- The space potential in the tokamak textPhysics of Fluids B: Plasma Physics, 1991
- Electric field profile of a Compact Helical System Heliotron/Torsatron plasma with tangential neutral beam injectionPhysics of Fluids B: Plasma Physics, 1991
- The H-Mode of ASDEXNuclear Fusion, 1989
- Low-aspect-ratio torsatron configurationsNuclear Fusion, 1988
- Space Potential Distribution in the ISX-B TokamakPhysical Review Letters, 1986
- Trapped particles in toroidal magnetic systemsNuclear Fusion, 1971