Toroidal rotation in RF heated JET plasmas
2007 (English)In: RADIO FREQUENCY POWER IN PLASMAS, 2007, Vol. 933, 59-62 p.Conference paper (Refereed)
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.
Place, publisher, year, edition, pages
2007. Vol. 933, 59-62 p.
, AIP Conference Proceedings, ISSN 0094-243X ; 933
C-MOD PLASMAS, ICRF, DISCHARGES, TRANSPORT
Fusion, Plasma and Space Physics
IdentifiersURN: urn:nbn:se:kth:diva-26175DOI: 10.1063/1.2800549ISI: 000251153300009ScopusID: 2-s2.0-36849025905ISBN: 978-0-7354-0444-1OAI: oai:DiVA.org:kth-26175DiVA: diva2:372207
17th Topical Conference on Radio Frequence Power in Plasmas Clearwater, FL, MAY 07-09, 2007
QC 201011242010-11-242010-11-192010-11-24Bibliographically approved