Millimeter-wave beam scattering and induced broadening by plasma turbulence in the TCV tokamak
Journal article, 2021
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.
electron-cyclotron resonant heating
millimeter-wave scattering
full-wave simulations
plasma turbulence
Langmuir probes
millimeter-wave beam
ITER
Author
O. Chellaï
Princeton University
Swiss Federal Institute of Technology in Lausanne (EPFL)
S. Alberti
Swiss Federal Institute of Technology in Lausanne (EPFL)
Ivo Furno
Swiss Federal Institute of Technology in Lausanne (EPFL)
T. Goodman
Swiss Federal Institute of Technology in Lausanne (EPFL)
O. Maj
Max Planck Society
G. Merlo
The University of Texas at Austin
E. Poli
Max Planck Society
Paolo Ricci
Swiss Federal Institute of Technology in Lausanne (EPFL)
F. Riva
Istituto Ricerche Solari Locarno
H. Weber
Max Planck Society
S. Coda
Swiss Federal Institute of Technology in Lausanne (EPFL)
M. Agostini
Consorzio Rfx
R. Albanese
University of Naples Federico II
E. Alessi
Istituto Di Fisica Del Plasma Piero Caldirola, Milan
S.Y. Allan
Durham University
J. Allcock
Durham University
R. Ambrosino
University Parthenope
H. Anand
ITER Organization
Y. Andrebe
Swiss Federal Institute of Technology in Lausanne (EPFL)
H. Arnichand
Swiss Federal Institute of Technology in Lausanne (EPFL)
F. Auriemma
Consorzio Rfx
J.M. Ayllon-Guerola
University of Seville
F. Bagnato
Swiss Federal Institute of Technology in Lausanne (EPFL)
J. Ball
Swiss Federal Institute of Technology in Lausanne (EPFL)
M. Baquero-Ruiz
Swiss Federal Institute of Technology in Lausanne (EPFL)
A.A. Beletskii
National Science Center
M. Bernert
Max Planck Society
W. Bin
Istituto Di Fisica Del Plasma Piero Caldirola, Milan
P. Blanchard
Swiss Federal Institute of Technology in Lausanne (EPFL)
T.C. Blanken
Eindhoven University of Technology
J.A. Boedo
University of California at San Diego (UCSD)
O. Bogar
Czech Academy of Sciences
T. Bolzonella
Consorzio Rfx
F. Bombarda
ENEA
N. Bonanomi
University of Milano-Bicocca
F. Bouquey
The French Alternative Energies and Atomic Energy Commission (CEA)
C. Bowman
University of York
D. Brida
Max Planck Society
J. Bucalossi
The French Alternative Energies and Atomic Energy Commission (CEA)
J. Buermans
Royal Military Academy
H. Bufferand
The French Alternative Energies and Atomic Energy Commission (CEA)
P. Buratti
ENEA
G. Calabrò
Tuscia University
L. Calacci
University of Rome Tor Vergata
Y. Camenen
Physique des Interactions Ioniques et Moleculaires
D. Carnevale
University of Rome Tor Vergata
F. Carpanese
Swiss Federal Institute of Technology in Lausanne (EPFL)
M. Carr
Culham Science Centre
L. Carraro
Consorzio Rfx
A. Casolari
Czech Academy of Sciences
F. Causa
Istituto Di Fisica Del Plasma Piero Caldirola, Milan
J. Čeřovský
Czech Academy of Sciences
P. Chmielewski
Instytut Problemow Jadrowyc
D. Choi
Swiss Federal Institute of Technology in Lausanne (EPFL)
N. Christen
University of Oxford
G. Ciraolo
The French Alternative Energies and Atomic Energy Commission (CEA)
L. Cordaro
Consorzio Rfx
S. Costea
University of Innsbruck
N. Cruz
Instituto Superior Tecnico
A. Czarnecka
Instytut Problemow Jadrowyc
A. Dal Molin
University of Milano-Bicocca
P. David
Max Planck Society
J. Decker
Swiss Federal Institute of Technology in Lausanne (EPFL)
H. De Oliveira
Swiss Federal Institute of Technology in Lausanne (EPFL)
D. Douai
The French Alternative Energies and Atomic Energy Commission (CEA)
M. B. Dreval
National Science Center
Benjamin Dudson
University of York
M. Dunne
Max Planck Society
B. Duval
Swiss Federal Institute of Technology in Lausanne (EPFL)
T. Eich
Max Planck Society
S.D. Elmore
Culham Science Centre
Ola Embréus
Chalmers, Physics, Subatomic, High Energy and Plasma Physics
B. Esposito
ENEA
M. Faitsch
Max Planck Society
M. Farnik
Czech Academy of Sciences
A. Fasoli
Swiss Federal Institute of Technology in Lausanne (EPFL)
N. Fedorczak
The French Alternative Energies and Atomic Energy Commission (CEA)
F Felici
Swiss Federal Institute of Technology in Lausanne (EPFL)
S. Feng
University of Milano-Bicocca
X. Feng
Durham University
G. Ferrò
University of Rome Tor Vergata
O. Février
Swiss Federal Institute of Technology in Lausanne (EPFL)
O. Ficker
Czech Academy of Sciences
A. Fil
University of York
M. Fontana
Swiss Federal Institute of Technology in Lausanne (EPFL)
L. Frassinetti
Royal Institute of Technology (KTH)
D. Gahle
University of Strathclyde
D. Galassi
Swiss Federal Institute of Technology in Lausanne (EPFL)
K. Galazka
Instytut Problemow Jadrowyc
A. Gallo
The French Alternative Energies and Atomic Energy Commission (CEA)
C. Galperti
Swiss Federal Institute of Technology in Lausanne (EPFL)
S. Garavaglia
Istituto Di Fisica Del Plasma Piero Caldirola, Milan
J. Garcia
The French Alternative Energies and Atomic Energy Commission (CEA)
M. Garcia-Munoz
University of Seville
A.J. Garrido
University of the Basque Country (UPV/EHU)
I. Garrido
University of the Basque Country (UPV/EHU)
J. Gath
Technical University of Denmark (DTU)
B. Geiger
Max Planck Society
G. Giruzzi
The French Alternative Energies and Atomic Energy Commission (CEA)
M. Gobbin
Consorzio Rfx
Nuclear Fusion
0029-5515 (ISSN) 1741-4326 (eISSN)
Vol. 61 6 066011Subject Categories
Accelerator Physics and Instrumentation
Atom and Molecular Physics and Optics
Fusion, Plasma and Space Physics
DOI
10.1088/1741-4326/abf43f