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 066011

Subject Categories

Accelerator Physics and Instrumentation

Atom and Molecular Physics and Optics

Fusion, Plasma and Space Physics

DOI

10.1088/1741-4326/abf43f

More information

Latest update

10/23/2023