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Título: | Millimeter-wave beam scattering and induced broadening by plasma turbulence in the TCV tokamak |
Autor: | Chellaï, Oulfa; Alberti, S.; Furno, I.; Goodman, T. P.; Maj, O.; Merlo, G.; Poli, E.; Ricci, P.; Riva, F.; Weber, H.; TCV Team | Palabras clave: | Electron-cyclotron resonant heating Full-wave simulations ITER Langmuir probes Millimeter-wave beam Millimeter-wave scattering Plasma turbulence |
Fecha de publicación: | jun-2021 | Editor: | IOP Publishing | Citación: | Nuclear Fusion 61(6): 066011 (2021) | Resumen: | The scattering of millimeter-wave beams from electron density fluctuations and the associated beam broadening are experimentally demonstrated. Using a dedicated setup, instantaneous deflection and (de-)focusing of the beam due to density blobs on the beam path are shown to agree with full-wave simulations. The detected time-averaged wave power transmitted through the turbulent plasma is reproduced by the radiative-transfer model implemented in the WKBeam code, which predicts a ∼50% turbulence-induced broadening of the beam cross-section. The role of core turbulence for the considered geometry is highlighted. | Descripción: | Ayllón Guerola, Juan Manuel forma parte del TCV Team | Versión del editor: | https://doi.org/10.1088/1741-4326/abf43f | URI: | http://hdl.handle.net/10261/307622 | DOI: | 10.1088/1741-4326/abf43f | ISSN: | 0029-5515 | E-ISSN: | 1741-4326 |
Aparece en las colecciones: | (CNA) Artículos (CICIC) Artículos |
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Acceso_restringido.pdf | 108,79 kB | Adobe PDF | Visualizar/Abrir |
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