GENERATION OF POLOIDAL ELECTRIC-FIELD WITH ELECTRON-CYCLOTRON-RESONANCE HEATING AND ITS EFFECTS ON PARTICLE CONFINEMENT IN HELIOTRON-E

Authors
ZUSHI H MIZUUCHI T NAGASAKI K NAKAYAMA T PETERSON BJ
Citation
H. Zushi et al., GENERATION OF POLOIDAL ELECTRIC-FIELD WITH ELECTRON-CYCLOTRON-RESONANCE HEATING AND ITS EFFECTS ON PARTICLE CONFINEMENT IN HELIOTRON-E, Plasma physics and controlled fusion, 38(8), 1996, pp. 1307-1312
Citations number
18
Categorie Soggetti
Phsycs, Fluid & Plasmas
Journal title
Plasma physics and controlled fusion → ACNP
ISSN journal
07413335
Volume
38
Issue
8
Year of publication
1996
Pages
1307 - 1312
Database
ISI
SICI code
0741-3335(1996)38:8<1307:GOPEWE>2.0.ZU;2-8
Abstract
The potential formation near the edge, X-points, and on the divertor f ootprints are studied using Langmuir probe arrays with respect to the density pump-out due to ECRH. It is found that a poloidal electric fie ld is generated in the interior region, and this is considered to caus e the enhanced particle flux across the LCFS. A poloidal structure of the edge potential distribution seems to be an m = 2 type and is discu ssed based on the orbit topology of warm electrons in the l = 2 heliot ron configuration.