TJ-II:Reflectometry: Difference between revisions

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[[File:DRscheme.jpg|200px|thumb|right|Schematic drawing of the Doppler Reflectometer System of TJ-II.]]
[[File:DRscheme.jpg|200px|thumb|right|Schematic drawing of the Doppler Reflectometer System of TJ-II.]]
Since February 2009, the frequency hopping system is in operation in oblique incidence (''Doppler'' reflectometry, [[TJ-II:Sectors|sector]] C6) <ref>[http://link.aip.org/link/?RSINAK/80/073502/1 T. Happel, T. Estrada, E. Blanco, V. Tribaldos, A. Cappa, and A. Bustos, Rev. Sci. Instrum. '''80''' (2009) 073502]</ref>, measuring plasma density fluctuation velocities and their wave number spectra. The system is able to measure in a radial range of about &rho; = 0.6 - 0.9 (&rho;=r/a is the effective radius) and the perpendicular wavenumber can be selected between 3 and 15 cm<sup>-1</sup>.
Since February 2009, the frequency hopping system is in operation in oblique incidence (''Doppler'' reflectometry, [[TJ-II:Sectors|sector]] C6) <ref>[http://link.aip.org/link/?RSINAK/80/073502/1 T. Happel, T. Estrada, E. Blanco, V. Tribaldos, A. Cappa, and A. Bustos, Rev. Sci. Instrum. '''80''' (2009) 073502]</ref>, measuring plasma density fluctuation velocities and their wave number spectra. The system is able to measure in a radial range of about &rho; = 0.6 - 0.9 (&rho; = r/a is the effective plasma radius) and the perpendicular wavenumber can be selected between 3 and 15 cm<sup>-1</sup>.


==References==
==References==
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