Transient Electron Thermal Transport Analysis Accounting Oblique Electron Cyclotron Resonance Heating Injection to Magnetic Field Line

Tatsuya KOBAYASHI; Ryoma YANAI; Toru Ii TSUJIMURA; Tokihiko TOKUZAWA; Yasuo YOSHIMURA; Katsumi IDA; the LHD Experiment Group

doi:10.1585/pfr.15.1402072

Regular Articles

Transient Electron Thermal Transport Analysis Accounting Oblique Electron Cyclotron Resonance Heating Injection to Magnetic Field Line

Tatsuya KOBAYASHI, Ryoma YANAI, Toru Ii TSUJIMURA, Tokihiko TOKUZAWA, Yasuo YOSHIMURA, Katsumi IDA, the LHD Experiment Group

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Keywords: thermal transport, turbulence, modulation ECH, transport hysteresis, isotope effect

JOURNAL FREE ACCESS

2020 Volume 15 Pages 1402072

DOI https://doi.org/10.1585/pfr.15.1402072

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Abstract

In response to recent upgrade of the raytracing code for the electron cyclotron resonance heating (ECH) in LHD, transient electron thermal transport is reanalyzed. The upgraded code LHDGauss-U takes into account the oblique injection of the ECH ray to magnetic field line. The obtained results show reduced transport hysteresis widths by up to ∼ 20% where the heating absorption is less significant, but qualitative features of the transport hysteresis reported in previous studies are found to be preserved.

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