Bulletin of the American Physical Society
64th Annual Meeting of the APS Division of Plasma Physics
Volume 67, Number 15
Monday–Friday, October 17–21, 2022; Spokane, Washington
Session NO03: High Field Tokamaks: SPARC, C-Mod, and Others
9:30 AM–12:42 PM,
Wednesday, October 19, 2022
Room: Ballroom 100 C
Chair: Ian Hutchinson, Massachusetts Institute of Technology MI
Abstract: NO03.00009 : ICRF Heating Scenarios for SPARC*
11:06 AM–11:18 AM
Presenter:
Michael Brookman
(Commonwealth Fusion Systems)
Authors:
John C Wright
(Massachusetts Institute of Technology MI)
Michael Brookman
(Commonwealth Fusion Systems)
Yijun Lin
(Massachusetts Institute of Technology MI)
Pablo Rodriguez-Fernandez
(MIT Plasma Science and Fusion Center)
Andrew Seltzman
(Massachusetts Institute of Technology MI)
SPARC is designed to have a 25 MW coupled ICRF system as its sole proposed auxiliary heating method. Even with the expected single pass absorption of approximately 90%, power on the order of 1MW can reach the high field side. We will present analysis of sheath formation and power loss in the far scrape-off layer and plasma facing components. ICRF sources have to efficiently heat the plasma during current ramp up and flat top at two nominal magnetic field strengths. Each of these require different species mixtures for activate and non-activated phases. Using TORIC and AORSA simulations with Fokker-Planck analysis from FPPRF and CQL3D we will characterize the single pass absorption and optimal minority fractions for efficient core heating in each of these regimes.
*Work supported by Commonwealth Fusion Systems.
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