The deteriorating effect of plasma density fluctuations on microwave beam quality
The deteriorating effect of plasma density fluctuations on microwave beam quality
Turbulent plasma edge density fluctuations can broaden a traversing microwave beam degrading its quality. This can be a problem for scenarios relying on a high spatial localization of the deposition of injected microwave power, like controlling MHD instabilities. Here we present numerical estimations of the scattering of a microwave beam by density fluctuations over a large parameter range, including extrapolations to ITER. Two codes are used, the full-wave code IPF-FDMC and the wave kinetic equation solver WKBeam. A successful comparison between beam broadening obtained from DIII-D experiments and corresponding full-wave simulations is shown.
Tallennettuna:
Kieli |
englanti |
---|---|
Sarja | 20TH JOINT WORKSHOP ON ELECTRON CYCLOTRON EMISSION AND ELECTRON CYCLOTRON RESONANCE HEATING (EC20) |
Aiheet | |
ISSN |
2100-014X |
DOI | 10.1051/epjconf/201920301005 |
Kuuluu kokonaisuuteen |