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Kinetic Ballooning Mode Turbulence Simulation based on Electromagnetic Gyrokinetics

Shinya MAEYAMA, Akihiro ISHIZAWA¹⁾, Tomohiko WATANABE¹⁾, Motoki NAKATA, Naoaki MIYATO and Yasuhiro IDOMURA

Japan Atomic Energy Agency, Rokkasho 039-3212, Japan

1)

National Institute for Fusion Science, Toki 509-5292, Japan

(Received 20 January 2014 / Accepted 30 January 2014 / Published 14 March 2014)

Abstract

The kinetic ballooning mode (KBM) turbulence in Tokamak plasma is investigated by electromagnetic gyrokinetic simulations. From the entropy balance analysis, it is revealed that the field-particle interactions transfer a significant fraction of the ion entropy produced by the instability to electrons. Then, the produced ion entropy balances to the sum of the ion and electron dissipations at the saturation of the KBM instability growth, in contrast to ITG turbulence where ion entropy production mostly balances to ion dissipation.

Copyright (c) 2014 The Japan Society of Plasma Science and Nuclear Fusion Research

Keywords

gyrokinetics, Vlasov simulation, kinetic ballooning mode

DOI: 10.1585/pfr.9.1203020

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References

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This paper may be cited as follows:

Shinya MAEYAMA, Akihiro ISHIZAWA, Tomohiko WATANABE, Motoki NAKATA, Naoaki MIYATO and Yasuhiro IDOMURA, Plasma Fusion Res. 9, 1203020 (2014).