TOROIDAL DRIFT MODE-STABILITY IN A CONTAMINATED PLASMA

Authors
JARMEN A FROJDH M
Citation
A. Jarmen et M. Frojdh, TOROIDAL DRIFT MODE-STABILITY IN A CONTAMINATED PLASMA, Physics of fluids. B, Plasma physics, 5(11), 1993, pp. 4015-4021
Citations number
24
Categorie Soggetti
Phsycs, Fluid & Plasmas
Journal title
Physics of fluids. B, Plasma physics → ACNP
ISSN journal
08998221
Volume
5
Issue
11
Year of publication
1993
Pages
4015 - 4021
Database
ISI
SICI code
0899-8221(1993)5:11<4015:TDMIAC>2.0.ZU;2-0
Abstract
Toroidal drift mode features and stability are studied, using a fluid description, for a plasma with two ion species: impurity and main ions . Impurity and main ion temperature gradient (ITG) modes dominate for larger temperature gradients, eta(i) > 1, while dissipative trapped el ectron (DTE) and impurity-induced modes are present also for eta(i) < 1. Simple analytical expressions for the stability thresholds are deri ved from conditions given by the impurity and main ion fluids.