Discrete Alfvén eigenmodes in the CFETR steady-state scenario

Discrete Alfvén eigenmodes in the CFETR steady-state scenario

The stability features of discrete Alfvén eigenmodes ( α TAEs) trapped by α -induced potential wells are explored in the China Fusion Engineering Test Reactor (CFETR) advanced steady-state operation environment, where α denotes a measure of the pressure gradient. For the reversed magnetic shear (RS)...

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Veröffentlicht in:Chinese physics B 2023-04, Vol.32 (5), p.55201-620
Hauptverfasser: Lan, Yuan-Dan, Hu, Shuang-Hui, Ouyang, Si-Jie, Zhu, Wan-Po, Huang, Xuan-Ge
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Alfvén wave
energetic particles
plasma instability
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container_end_page 620
container_issue 5
container_start_page 55201
container_title Chinese physics B
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creator Lan, Yuan-Dan
Hu, Shuang-Hui
Ouyang, Si-Jie
Zhu, Wan-Po
Huang, Xuan-Ge
description The stability features of discrete Alfvén eigenmodes ( α TAEs) trapped by α -induced potential wells are explored in the China Fusion Engineering Test Reactor (CFETR) advanced steady-state operation environment, where α denotes a measure of the pressure gradient. For the reversed magnetic shear (RS) H-mode scenario with an enhanced internal transport barrier (ITB), the α TAEs are trapped in the electron cyclotron (EC) power deposition region and the effects of different pedestals on α TAEs are analyzed. For the negative off-axis magnetic shear scenario, the α TAEs are discussed, and the effect of different magnetic shears on the α TAEs is presented. Finally, the effects of beam energies and pitch-angle distributions on α TAE stability are also presented.
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subjects Alfvén wave
energetic particles
plasma instability
title Discrete Alfvén eigenmodes in the CFETR steady-state scenario
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