Plasma turbulence studies using correlation Doppler reflectometry on the ASDEX upgrade tokamak

Author

Schirmer, J. ; Conway, G.D. ; Suttrop, W. ; Klenge, S. ; Zohm, H.

Author_Institution

Max-Planck-Inst. fur Plasmaphys., Garching, Germany

fYear

2004

fDate

27 Sept.-1 Oct. 2004

Firstpage

707

Lastpage

708

Abstract

The correlation Doppler reflectometer system consists of two 50-75 GHz reflectometers with a selectable O/X-mode polarization. Launching from the same tilted antenna allows the measurement of the radial electric field shear dE_r/dr and radial correlation lengths L_r, important parameters characterizing plasma turbulence. The reflectometer hardware is described and example measurements presented.

Keywords

Doppler measurement; Tokamak devices; microwave reflectometry; plasma diagnostics; plasma toroidal confinement; plasma turbulence; reflectometers; 50 to 75 GHz; ASDEX upgrade tokamak; O/X-mode polarization; correlation Doppler reflectometry; plasma turbulence; radial correlation lengths; radial electric field shear measurement; tilted antenna; Erbium; Frequency; Hardware; Magnetic field measurement; Plasma confinement; Plasma measurements; Plasma waves; Reflectometry; Tokamaks; Variable speed drives;

fLanguage

English

Publisher

ieee

Conference_Titel

Infrared and Millimeter Waves, 2004 and 12th International Conference on Terahertz Electronics, 2004. Conference Digest of the 2004 Joint 29th International Conference on

Print_ISBN

0-7803-8490-3

Type

conf

DOI

10.1109/ICIMW.2004.1422287

Filename

1422287