Analysis of Alfven eigenmode destabilization in DIII-D high poloidal <i>β</i> discharges using a Landau closure model

Varela, J.; A. Spong, D.; García, L.; Huang, Jia; Murakami, M.; M. Garofalo, A.; Qian, Jing; T. Holcomb, C.; Hyatt, A.W.; Ferron, J.R.; S. Collins, C.; Ren, Q.; McClenaghan, J.; Guo, Wenfeng

doi:10.1088/1741-4326/aac33f

Public

Analysis of Alfven eigenmode destabilization in DIII-D high poloidal β discharges using a Landau closure model

Shared by NobleBlocks on May 9, 2018 • 12:00 AM UTC

Authors:

J. Varela

D. A. Spong

L. García

Abstract

Alfven Eigenmodes are destabilized at the DIII-D pedestal during transient beta drops in high poloidal beta discharges with internal transport barriers (ITBs), driven by n=1 external kink modes, leading to energetic particle losses. There are two different scenarios in the thermal beta recovery phas...

Subject

Physics

DIII-D

Instability

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