Complete multi-field characterization of the geodesic acoustic mode in the TCV tokamak

C. A. De Meijere; S. Coda; Z. Huang; L. Vermare; T. Vernay; V. Vuille; S. Brunner; J. Dominski; P. Hennequin; A. Krämer-Flecken; G. Merlo; L. Porte; L. Villard

doi:10.1088/0741-3335/56/7/072001

Complete multi-field characterization of the geodesic acoustic mode in the TCV tokamak

C. A. De Meijere
, S. Coda
, Z. Huang
, L. Vermare
, T. Vernay
, V. Vuille
, S. Brunner
, J. Dominski
, P. Hennequin
, A. Krämer-Flecken
, G. Merlo
, L. Porte
, L. Villard

ENAC-IIC-GEL
LPP
Research Centre Julich

Résultats de recherche: Contribution à un journal › Article › Revue par des pairs

Résumé

The geodesic acoustic mode (GAM) is a coherently oscillating zonal flow that may regulate turbulence in toroidal plasmas. Uniquely, the complete poloidal and toroidal structure of the magnetic component of the turbulence-driven GAM has been mapped in the TCV tokamak. Radially localized measurements of the fluctuating density, ECE radiative temperature and poloidal flow show that the GAM is a fully coherent, radially propagating wave. These observations are consistent with electrostatic, gyrokinetic simulations.

langue originale	Anglais
Numéro d'article	072001
journal	Plasma Physics and Controlled Fusion
Volume	56
Numéro de publication	7
Les DOIs	https://doi.org/10.1088/0741-3335/56/7/072001
état	Publié - 1 janv. 2014
Modification externe	Oui

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10.1088/0741-3335/56/7/072001

Contient cette citation

De Meijere, C. A., Coda, S., Huang, Z., Vermare, L., Vernay, T., Vuille, V., Brunner, S., Dominski, J., Hennequin, P., Krämer-Flecken, A., Merlo, G., Porte, L., & Villard, L. (2014). Complete multi-field characterization of the geodesic acoustic mode in the TCV tokamak. Plasma Physics and Controlled Fusion, 56(7), Article 072001. https://doi.org/10.1088/0741-3335/56/7/072001

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abstract = "The geodesic acoustic mode (GAM) is a coherently oscillating zonal flow that may regulate turbulence in toroidal plasmas. Uniquely, the complete poloidal and toroidal structure of the magnetic component of the turbulence-driven GAM has been mapped in the TCV tokamak. Radially localized measurements of the fluctuating density, ECE radiative temperature and poloidal flow show that the GAM is a fully coherent, radially propagating wave. These observations are consistent with electrostatic, gyrokinetic simulations.",

keywords = "geodesic acoustic mode, phase-contrast imaging, tokamak",

author = "\{De Meijere\}, \{C. A.\} and S. Coda and Z. Huang and L. Vermare and T. Vernay and V. Vuille and S. Brunner and J. Dominski and P. Hennequin and A. Kr{\"a}mer-Flecken and G. Merlo and L. Porte and L. Villard",

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doi = "10.1088/0741-3335/56/7/072001",

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AU - De Meijere, C. A.

AU - Coda, S.

AU - Huang, Z.

AU - Vermare, L.

AU - Vernay, T.

AU - Vuille, V.

AU - Brunner, S.

AU - Dominski, J.

AU - Hennequin, P.

AU - Krämer-Flecken, A.

AU - Merlo, G.

AU - Porte, L.

AU - Villard, L.

PY - 2014/1/1

Y1 - 2014/1/1

N2 - The geodesic acoustic mode (GAM) is a coherently oscillating zonal flow that may regulate turbulence in toroidal plasmas. Uniquely, the complete poloidal and toroidal structure of the magnetic component of the turbulence-driven GAM has been mapped in the TCV tokamak. Radially localized measurements of the fluctuating density, ECE radiative temperature and poloidal flow show that the GAM is a fully coherent, radially propagating wave. These observations are consistent with electrostatic, gyrokinetic simulations.

AB - The geodesic acoustic mode (GAM) is a coherently oscillating zonal flow that may regulate turbulence in toroidal plasmas. Uniquely, the complete poloidal and toroidal structure of the magnetic component of the turbulence-driven GAM has been mapped in the TCV tokamak. Radially localized measurements of the fluctuating density, ECE radiative temperature and poloidal flow show that the GAM is a fully coherent, radially propagating wave. These observations are consistent with electrostatic, gyrokinetic simulations.

KW - geodesic acoustic mode

KW - phase-contrast imaging

KW - tokamak

U2 - 10.1088/0741-3335/56/7/072001

DO - 10.1088/0741-3335/56/7/072001

M3 - Article

AN - SCOPUS:84902964201

SN - 0741-3335

VL - 56

JO - Plasma Physics and Controlled Fusion

JF - Plasma Physics and Controlled Fusion

IS - 7

M1 - 072001

ER -

Complete multi-field characterization of the geodesic acoustic mode in the TCV tokamak

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