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Linear gyrokinetic studies with ORB5 en route to pair plasmas

Published online by Cambridge University Press:  21 May 2019

J. Horn-Stanja ,
A. Biancalani ,
A. Bottino  and
A. Mishchenko Open the ORCID record for A. Mishchenko [Opens in a new window]
J. Horn-Stanja*
Affiliation:
Max Planck Institute for Plasma Physics, 85748 Garching, Germany
A. Biancalani
Affiliation:
Max Planck Institute for Plasma Physics, 85748 Garching, Germany
A. Bottino
Affiliation:
Max Planck Institute for Plasma Physics, 85748 Garching, Germany
A. Mishchenko
Affiliation:
Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
*
†Email address for correspondence: [email protected]
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Abstract

The model of the global gyrokinetic particle-in-cell code ORB5 has been extended for the study of pair plasmas. This has been done by including the physics of the Debye shielding, by including the electron polarization density and by retaining the effects of the electron finite Larmor radius. This model is verified against previous numerical results for the cyclone base case tokamak scenario in deuterium plasmas, and for local pair plasma simulations. The linear dynamics of temperature-gradient driven instabilities and geodesic acoustic modes is investigated. Mass dependencies for different Debye lengths are studied.

Keywords

plasma instabilitiesplasma simulation
Type
Research Article
Information
Journal of Plasma Physics , Volume 85 , Issue 3 , June 2019 , 905850302
Copyright
© Cambridge University Press 2019 

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