Fast wave current drive in JET ITB-plasma
2005 (English)In: AIP Conference Proceedings, 2005, Vol. 787, 273-278 p.Conference paper (Refereed)
Fast wave current drive has been performed in JET plasmas with internal transport barriers, ITBs, and strongly reversed magnetic shear. Although the current drive efficiency of the power absorbed on the electrons is fairly high, only small effects are seen in the central current density. The main reasons are the parasitic absorption of RF power, the strongly inductive nature of the plasma and the interplay between the fast wave driven current and bootstrap current. The direct electron heating in the FWCD experiments is found to be strongly degraded compared to that with the dipole phasing.
Place, publisher, year, edition, pages
2005. Vol. 787, 273-278 p.
Fast Wave Current Drive, ICRH, ITB
IdentifiersURN: urn:nbn:se:kth:diva-26184DOI: 10.1063/1.2098240ISI: 000232634700054OAI: oai:DiVA.org:kth-26184DiVA: diva2:372177
16th Topical Conference on Radio Frequency Power in Plasmas, Park City, UT
QC 201011242010-11-242010-11-192010-11-24Bibliographically approved