Gyrokinetic study of slowing-down α particles transport due to trapped electron mode turbulence
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DOI: 10.1063/1.5060628
Abstract: Transport of α particles due to trapped electron mode (TEM) turbulence is investigated from nonlinear and quasilinear gyrokinetic simulations. We consider both slowing-down and Maxwellian distribution functions for α particles and identify and compare diffusive… read more here.
Keywords: mode; trapped electron; transport; electron mode ... See more keywords
Impact of impurities on zonal flow driven by trapped electron mode turbulence
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DOI: 10.1088/1741-4326/aa8549
Abstract: The impact of impurities on the generation of zonal flow (ZF) driven by collisonless trapped electron mode (CTEM) turbulence in deuterium (D)-tritium (T) plasmas is investigated. The expression for ZF growth rate with impurities is… read more here.
Keywords: flow driven; trapped electron; impact impurities; electron mode ... See more keywords
Bounce-averaged gyrokinetic simulation of trapped electron turbulence in elongated tokamak plasmas
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DOI: 10.1088/1741-4326/aa88e1
Abstract: Plasma elongation effects on turbulence and zonal flow are explicitly investigated for the first time with global bounce-averaged gyrokinetic simulations for a collisionless trapped electron mode (CTEM). As the most efficient steady state turbulence simulation… read more here.
Keywords: gyrokinetic simulation; averaged gyrokinetic; trapped electron; bounce averaged ... See more keywords
Modulation of the trapped electron driven turbulence by m/n=2/1 tearing mode in the core of HL-2A plasmas
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DOI: 10.1088/1741-4326/ab8180
Abstract: Turbulent fluctuations within a quasi-coherent frequency range (peak frequency of ~ 130 kHz, ∆f ≈ tens of kHz) are modulated by the rotation of low frequency tearing modes in the core of HL-2A ohmic plasmas.… read more here.
Keywords: plasmas; mode; trapped electron; frequency ... See more keywords