Runaway electron suppression in MST tokamak plasmas with RMP: simulation and experiment
ORAL · Invited
Abstract
Nonlinear MHD simulations using the NIMROD code have provided an explanation for the differing effects of $m=1$ and $m=3$ resonant magnetic perturbations (RMPs) on runaway electron (RE) confinement in Madison Symmetric Torus (MST) tokamak plasmas. Correlating experiments with simulated magnetic topology shows that REs are suppressed only when the applied RMP imposes magnetic chaos in the outer region of the plasma [Munaretto, et al., NF 60, 046024 (2020)]. Without an RMP, discharges with $q(0)<1$ and $2
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Publication: Munaretto, et al., NF 60, 046024 (2020)
Presenters
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Brian S Cornille
University of Wisconsin - Madison, University of Wisconsin-Madison
Authors
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Brian S Cornille
University of Wisconsin - Madison, University of Wisconsin-Madison
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Stefano Munaretto
Princeton Plasma Physics Laboratory
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Matthew T Beidler
Oak Ridge National Lab
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Brett E Chapman
University of Wisconsin - Madison, UW-Madison
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Ami M DuBois
US Naval Research Laboratory, Naval Research Laboratory
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Karsten J McCollam
University of Wisconsin - Madison, UW-Madison
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Carl R Sovinec
University of Wisconsin - Madison
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Abdulgader Almagri
University of Wisconsin - Madison
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John A Goetz
University of Wisconsin - Madison