ICRF Mode Conversion Flow Drive on Alcator C-Mod and Projections to Other Tokamaks
Name
Porkolab2.pdf
Size
1.75 MB
Format
Adobe PDF
Checksum (MD5)
51bca62421dd98f5db539316f510d6eb
Author(s)
Lin, Yijun
Rice, John E.
Wukitch, Stephen James
Greenwald, Martin J.
Hubbard, Amanda E.
Ince-Cushman, Alexander
Lin, Liang
Marmar, Earl S.
Porkolab, Miklos
Reinke, Matthew Logan
Date Issued
November 2009
Journal
AIP Conference Proceedings
Publisher
American Institute of Physics
Citation
Lin, Y. et al. “ICRF Mode Conversion Flow Drive on Alcator C-Mod and Projections to Other Tokamaks.” Gent (Belgium), 2009. 57-64. ©2009 American Institute of Physics
Version
Final published version
Abstract
Plasma flow drive via ICRF mode conversion (MC) has been demonstrated on Alcator C-Mod. The toroidal rotation in these D([superscript 3]He) MC plasmas is typically more than twice above the empirically determined intrinsic rotation scaling in ICRF minority heated plasmas. In L-mode plasmas at 3 MW ICRF power input, up to 90 km/s toroidal rotation and 2 km/s localized ( r/a~0.4) poloidal rotation has been observed. The MC ion cyclotron wave (ICW) was detected by a phase contrast imaging system in heterodyne setup. Through TORIC 2-D full wave simulation, and comparison with other experimental evidence, we hypothesize that the interaction between the MC ICW and the [superscript 3]He ions may be the mechanism for the observed MC flow drive. TORIC simulation suggests that similar flow drive scenario may be realized on JET D(3He) plasmas. The promising scenarios on ITER are the inverted minority scenario (T)D and high field launch for T-D-([superscript 3]He) plasma. In non-radioactive phase, these correspond to ([superscript 3]He)-H and [superscript 4]He([superscript 3]He) plasmas respectively.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Plasma Science and Fusion Center
Terms of Use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1063/1.3273817
