Gyrokinetic study of the electron temperature gradient instability in plasmas with slightly hollow density profiles

Citation
Jq. Dong et al., Gyrokinetic study of the electron temperature gradient instability in plasmas with slightly hollow density profiles, PHYS PLASMA, 8(8), 2001, pp. 3635-3644
Citations number
36
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physics
Journal title
PHYSICS OF PLASMAS
ISSN journal
1070-664X → ACNP
Volume
8
Issue
8
Year of publication
2001
Pages
3635 - 3644
Database
ISI
SICI code
1070-664X(200108)8:8<3635:GSOTET>2.0.ZU;2-A
Abstract
The electron temperature gradient driven instabilities in plasmas with slig htly hollow density profiles are studied. The gyrokinetic integral eigenval ue equation valid for a sheared slab configuration is employed. The Debye s hielding effect on the modes is investigated. The effects of a sheared ExB flow on the modes are considered. Six modes with even or odd parities are f ound to be simultaneously unstable. The mixing length estimate for the tran sport is calculated. The flow shear suppression on the modes, as well as on the transport, is demonstrated. The correlations of the results with helic al system Heliotron/Torsotron and tokamak experiments are discussed. (C) 20 01 American Institute of Physics.