The effect of toroidal plasma rotation on low-frequency reversed shear Alfven eigenmodes in tokamaks

TitleThe effect of toroidal plasma rotation on low-frequency reversed shear Alfven eigenmodes in tokamaks
Publication TypeJournal Article
Year of Publication2012
AuthorsJ.W Haverkort
JournalPlasma Physics and Controlled Fusion
Volume54
Number2
Pagination025005
Date PublishedFeb
Type of ArticleArticle
ISBN Number0741-3335
KeywordsMHD SPECTROSCOPY, STABILITY, SYSTEMS, WAVES
Abstract

The influence of toroidal plasma rotation on the existence of reversed shear Alfven eigenmodes (RSAEs) near their minimum frequency is investigated analytically. An existence condition is derived showing that a radially decreasing kinetic energy density is unfavourable for the existence of RSAEs. The Coriolis effect is typically unfavourable for modes moving slower than the plasma or moving in the opposite direction. The generality of the analysis allows for the description of downwards sweeping RSAEs and also rotation-induced modes in regular shear plasmas.

URLhttp://homepages.cwi.nl/~haverkor/publications/12_PPCF_JWHaverkort.pdf
DOI10.1088/0741-3335/54/2/025005
Division

FP

Department

CPP-HT

PID

d6b447ef7a407598a31ca699af3ae26c

Alternate TitlePlasma Phys. Control. Fusion

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