Perturbing microwave beams by plasma density fluctuations
The propagation of microwaves across a turbulent plasma density layer is investigated with full-wave simulations. To properly represent a fusion edge-plasma, drift-wave turbulence is considered based on the Hasegawa-Wakatani model. Scattering and broadening of a microwave beam whose amplitude distri...
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EDP Sciences
2017-01-01
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Series: | EPJ Web of Conferences |
Online Access: | https://doi.org/10.1051/epjconf/201714701001 |
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doaj-0ac0d01605bc4d288dc0cbcc1bf3c3182021-08-02T06:59:15ZengEDP SciencesEPJ Web of Conferences2100-014X2017-01-011470100110.1051/epjconf/201714701001epjconf_ec2017_01001Perturbing microwave beams by plasma density fluctuationsKöhn Alf0Holzhauer Eberhard1Leddy Jarrod2Thomas Matthew B.3Vann Roddy G. L.4Max Planck Institute for Plasma PhysicsInstitute of Interfacial Process Engineering and Plasma Technology, University of StuttgartYork Plasma Institute, Department of Physics, University of YorkYork Plasma Institute, Department of Physics, University of YorkYork Plasma Institute, Department of Physics, University of YorkThe propagation of microwaves across a turbulent plasma density layer is investigated with full-wave simulations. To properly represent a fusion edge-plasma, drift-wave turbulence is considered based on the Hasegawa-Wakatani model. Scattering and broadening of a microwave beam whose amplitude distribution is of Gaussian shape is studied in detail as a function of certain turbulence properties. Parameters leading to the strongest deterioration of the microwave beam are identified and implications for existing experiments are given.https://doi.org/10.1051/epjconf/201714701001 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Köhn Alf Holzhauer Eberhard Leddy Jarrod Thomas Matthew B. Vann Roddy G. L. |
spellingShingle |
Köhn Alf Holzhauer Eberhard Leddy Jarrod Thomas Matthew B. Vann Roddy G. L. Perturbing microwave beams by plasma density fluctuations EPJ Web of Conferences |
author_facet |
Köhn Alf Holzhauer Eberhard Leddy Jarrod Thomas Matthew B. Vann Roddy G. L. |
author_sort |
Köhn Alf |
title |
Perturbing microwave beams by plasma density fluctuations |
title_short |
Perturbing microwave beams by plasma density fluctuations |
title_full |
Perturbing microwave beams by plasma density fluctuations |
title_fullStr |
Perturbing microwave beams by plasma density fluctuations |
title_full_unstemmed |
Perturbing microwave beams by plasma density fluctuations |
title_sort |
perturbing microwave beams by plasma density fluctuations |
publisher |
EDP Sciences |
series |
EPJ Web of Conferences |
issn |
2100-014X |
publishDate |
2017-01-01 |
description |
The propagation of microwaves across a turbulent plasma density layer is investigated with full-wave simulations. To properly represent a fusion edge-plasma, drift-wave turbulence is considered based on the Hasegawa-Wakatani model. Scattering and broadening of a microwave beam whose amplitude distribution is of Gaussian shape is studied in detail as a function of certain turbulence properties. Parameters leading to the strongest deterioration of the microwave beam are identified and implications for existing experiments are given. |
url |
https://doi.org/10.1051/epjconf/201714701001 |
work_keys_str_mv |
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_version_ |
1721239734012870656 |