HIGH INTERNAL INDUCTANCE IMPROVED CONFINEMENT H-MODE DISCHARGES OBTAINED WITH AN ELONGATION RAMP TECHNIQUE IN THE DIII-D TOKAMAK

Authors
LAO LL FERRON JR TAYLOR TS BURRELL KH CHAN VS CHU MS DEBOO JC DOYLE EJ GREENFIELD CM GROEBNER RJ JAMES R LAZARUS EA OSBORNE TH STJOHN H STRAIT EJ THOMPSON SJ TURNBULL AD WROBLEWSKI D ZOHM H
Citation
Ll. Lao et al., HIGH INTERNAL INDUCTANCE IMPROVED CONFINEMENT H-MODE DISCHARGES OBTAINED WITH AN ELONGATION RAMP TECHNIQUE IN THE DIII-D TOKAMAK, Physical review letters, 70(22), 1993, pp. 3435-3438
Citations number
16
Categorie Soggetti
Physics
Journal title
Physical review letters → ACNP
ISSN journal
00319007
Volume
70
Issue
22
Year of publication
1993
Pages
3435 - 3438
Database
ISI
SICI code
0031-9007(1993)70:22<3435:HIIICH>2.0.ZU;2-B
Abstract
High confinement mode (H-mode) discharges with peaked toroidal current density profile (high inductance, l(i)) and improved confinement are obtained in the DIII-D tokamak by dynamically varying the current prof ile using a rapid elongation ramp technique. The confinement improveme nt increases with l(i) and persists in the presence of edge-localized modes. The plasma toroidal rotation and the corresponding radial elect ric field component also increase with the peakedness of the current d ensity profile.