Köhn, Alf, Austin, Max E., Brookman, Michael W. et al. (13 more authors) (2019) The deteriorating effect of plasma density fluctuations on microwave beam quality. EPJ Web of Conferences. ISSN 2100-014X
Abstract
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.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © The Authors, published by EDP Sciences. EPJ Web of Conferences, EC-20 2018 Proceedings |
Keywords: | physics.plasm-ph |
Dates: |
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Institution: | The University of York |
Academic Units: | The University of York > Faculty of Sciences (York) > Physics (York) |
Depositing User: | Pure (York) |
Date Deposited: | 07 May 2019 11:20 |
Last Modified: | 24 Oct 2024 00:03 |
Published Version: | https://doi.org/10.1051/epjconf/201920301005 |
Status: | Published |
Refereed: | Yes |
Identification Number: | 10.1051/epjconf/201920301005 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:145691 |