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   Articles with "high poloidal" as a keyword



Evolution of High‐ m Poloidal Alfvén Waves in a Dipole Magnetic Field

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recommendations! Published in 2020 at "Journal of Geophysical Research"

DOI: 10.1029/2020ja028187

Abstract: We investigate how initially high-m, poloidal Alfvén waves evolve using a numerical model solving the ideal, cold, linear magnetohydrodynamic (MHD) equations in a 2-D dipole coordinate system. The curved magnetic geometry provides a key difference… read more here.

Keywords: high poloidal; field; poloidal; geometry ... See more keywords

Electron ITB formation in EAST high poloidal beta plasmas under dominant electron heating

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recommendations! Published in 2024 at "Plasma Physics and Controlled Fusion"

DOI: 10.1088/1361-6587/ad3c1a

Abstract: Plasma confinement and transport in tokamaks play a crucial role in the development of high poloidal beta steady-state operation scenarios. Therefore, it is very important to study the relevant mechanism of internal transport barriers (ITBs),… read more here.

Keywords: high poloidal; transport; electron; poloidal beta ... See more keywords

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

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recommendations! Published in 2018 at "Nuclear Fusion"

DOI: 10.1088/1741-4326/aac33f

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… read more here.

Keywords: high poloidal; alfven eigenmodes; diii high; poloidal ... See more keywords

Variable-spectrum mode control of high poloidal beta discharges

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recommendations! Published in 2024 at "Nuclear Fusion"

DOI: 10.1088/1741-4326/ad56a4

Abstract: DIII-D experiments demonstrate that high pressure, broad current profile equilibria can be accessed in the high poloidal beta regime by optimizing the MHD mode control poloidal spectrum. A novel, variable spectrum (VS) magnetic feedback scheme… read more here.

Keywords: mode; beta; high poloidal; feedback ... See more keywords