Bulletin of the American Physical Society
60th Annual Meeting of the APS Division of Plasma Physics
Volume 63, Number 11
Monday–Friday, November 5–9, 2018; Portland, Oregon
Session PP11: Poster Session VI: Relativistic Laser Plasma Interaction and Beam Physics; Boundary; MHD and Stability, Transients; FRC; Dusty Plasmas; Basic Studies; Computational and Diagnostic Methods (2:00pm-5:00pm)
Wednesday, November 7, 2018
OCC
Room: Exhibit Hall A1&A
Abstract ID: BAPS.2018.DPP.PP11.38
Abstract: PP11.00038 : Predictions of ICRF induced sheaths and sputtering in the LAPD experiment*
Presenter:
John Christopher Wright
(Massachusetts Inst of Tech-MIT)
Authors:
John Christopher Wright
(Massachusetts Inst of Tech-MIT)
Syunichi Shiraiwa
(MIT)
Davide Curreli
(Univ of Illinois - Urbana)
Moutaz Elias
(Univ of Illinois - Urbana)
Cornwall Hong Man Lau
(Massachusetts Inst of Tech-MIT)
James Richard Myra
(Lodestar Res Corp)
Bart G.P. Van Compernolle
(Univ of California - Los Angeles)
Rory James Perkins
(Princeton Plasma Phys Lab)
A major goal of ICRF research is to design an antenna that minimizes impurity production while coupling substantial power to the plasma. The LArge Plasma Device (LAPD) at UCLA provides a flexible and accessible platform for validation studies of ICRF wave core propagation and interaction with plasma facing components. LAPD has a 100 kW single strap ICRF antenna and has plasmas with densities of and temperatures of that is similar to the edge of a tokamak or stellerator. We apply the Petra-M RF module to ICRF scenarios in LAPD including fast and slow wave propagation. We will show validation studies on wave propagation measurements and discuss model results for slow wave mode conversion to the ion plasma wave and fast wave incident on a conducting plate. The conducting plate study will also include calculations of RF sheath potentials and estimates of sputtering yields for different plate materials under a helium plasma.
*This work was supported by DoE Contract Number DE-SC0018090 and was performed at the Basic Plasma Science Facility supported by DOE and NSF, with major facility instrumentation developed via an NSF award AGS-9724366.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2018.DPP.PP11.38
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