Toroidal rotation in RF heated JET plasmas

L. G. Eriksson, T. Hellsten, F. Nave, J. Brzozowski, K. Holmström, T. Johnson, J. Ongena, K. D. Zastrow

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Experiments have been carried out on JET aimed at studying rotation in RF heated plasmas with low external momentum input. Both plasmas with Ion Cyclotron Resonance Frequency (ICRF) heating and Lower Hybrid Current Drive (LHCD) have been investigated. The rotation profiles are measured by Charge Exchange recombination spectroscopy, using short diagnostic Neutral Beam Injection (NBI) pulses. Moreover, the temporal evolution of the central rotation could in some cases be deduced from MHD activity. While most of the measurements were focussed on ICRF heating, the profiles measured in plasmas with LHCD are interesting since they are the first reported from JET in such plasmas. In particular, they allowed for studies of rotation in RF heated plasmas with q>1. The experimental results are presented together with an analysis of the torque from ICRF heated fast ions.

Original languageEnglish
Title of host publicationRADIO FREQUENCY POWER IN PLASMAS
Subtitle of host publication17th Topical Conference on Radio Frequency Power in Plasmas
Pages59-62
Number of pages4
DOIs
Publication statusPublished - 2007
Event17th Topical Conference on Radio Frequency Power in Plasmas - Clearwater, FL, United States
Duration: 7 May 20079 May 2007

Publication series

NameAIP Conference Proceedings
Volume933
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference17th Topical Conference on Radio Frequency Power in Plasmas
Country/TerritoryUnited States
CityClearwater, FL
Period7/05/079/05/07

Fingerprint

Dive into the research topics of 'Toroidal rotation in RF heated JET plasmas'. Together they form a unique fingerprint.

Cite this