SUPERSHOT TO LIMITER H-MODE TRANSITIONS IN DEUTERIUM PLASMAS IN TFTR

Authors
BUSH CE BRETZ N BUDNY R SYNAKOWSKI EJ BATHA SH DURST R EFTHIMION PC FONCK RJ FREDRICKSON ED LEVINTON FM PAUL S TAYLOR G
Citation
Ce. Bush et al., SUPERSHOT TO LIMITER H-MODE TRANSITIONS IN DEUTERIUM PLASMAS IN TFTR, Plasma physics and controlled fusion, 36(7), 1994, pp. 10000153-10000158
Citations number
9
Categorie Soggetti
Phsycs, Fluid & Plasmas
Journal title
Plasma physics and controlled fusion → ACNP
ISSN journal
07413335
Volume
36
Issue
7
Year of publication
1994
Supplement
A
Pages
10000153 - 10000158
Database
ISI
SICI code
0741-3335(1994)36:7<10000153:STLHTI>2.0.ZU;2-6
Abstract
Supershot to limiter H-mode transitions have been studied on TFTR. In several cases an edge poloidal rotation was observed prior to the init ial D(alpha) drop at the transition. This spin-up is consistent with f ormation of a radial electric field, -E(r). The delp(I) contribution t o E(r) is approximately 30 kV/m and the density fluctuation level is r educed by a factor of 1 to 1.5 over a 5 cm region at the plasma edge a cross the transition.