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
The effect of shaping on trapped electron mode stability: an analytical model
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DOI: 10.1088/1741-4326/ad6e9f
Abstract: A reduced model for trapped electron mode stability has been developed, which incorporates the basic effects of magnetic surface shaping, in particular, elongation and triangularity. This model shows that while elongation is stabilising, though weakly,… read more here.
Keywords: trapped electron; stability; electron mode; model ... See more keywords