Bulletin of the American Physical Society
63rd Annual Meeting of the APS Division of Plasma Physics
Volume 66, Number 13
Monday–Friday, November 8–12, 2021; Pittsburgh, PA
Session BP11: Poster Session I:
BEAMS - Coherent radiation and intense laser-driven x-ray sources; Laser-plasma ion accelerators; Relativistic high-energy-density physics and high field physics
MFE - Low Aspect Ratio Tokamaks
9:30 AM - 12:30 PM
Monday, November 8, 2021
Room: Hall A
Abstract: BP11.00018 : Linear analysis of outboard scrape-off layer instability in MAST-U *
Presenter:
Derek A Baver
(Lodestar Research Corporation)
Authors:
Derek A Baver
(Lodestar Research Corporation)
James R Myra
(Lodestar Research Corporation)
Fulvio Militello
(CCFE)
David Moulton
(CCFE)
Collaboration:
MAST-U
In the present work, this code is applied to plasma parameters and magnetic geometry from SOLPS simulations and available data of the scrape-off layer of MAST-U. A question of particular importance is what effect advanced divertor configurations, such as the super-X, have on instability in the divertor leg. Another is the role of midplane-localized instability, via penetration of filamentary structures into the divertor leg, as compared to locally-generated instability. This in turn is affected by the relative role of drift vs. curvature drive.
These results will be informative to future divertor designs, particularly with regard to the question of whether magnetic path in the divertor can play a significant role in heat flux width.
1. D. A. Baver, J. R. Myra and M. V. Umansky, Comm. Comp. Phys. 20, 136 (2016).
*Work supported by the U.S. Department of Energy Office of Science, Office of Fusion Energy Sciences, under Award Number DE-SC0019270, and RCUK Energy Programme, under Grant Number EP/T012250/1.
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