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TJ-II:Electron Cyclotron Emission: Difference between revisions
TJ-II:Electron Cyclotron Emission (view source)
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by means of a 16 channel heterodyne radiometer, | by means of a 16 channel heterodyne radiometer, | ||
covering the frequency range 50–60 GHz, corresponding to the second harmonic of electron cyclotron emission (ECE) in X-mode polarization at a magnetic field of 0.95 T on the plasma axis. | covering the frequency range 50–60 GHz, corresponding to the second harmonic of electron cyclotron emission (ECE) in X-mode polarization at a magnetic field of 0.95 T on the plasma axis. | ||
The measurements are performed from the low field side (LFS) in the horizontal midplane (between [[TJ-II:Sectors|sectors]] C4 and C5). | The measurements are performed from the low field side (LFS) in the horizontal midplane (between [[TJ-II:Sectors|sectors]] C4 and C5, φ = 315°). | ||
Each frequency corresponds to a different value of the major radius ''R'' (according to ''B(R)''). | Each frequency corresponds to a different value of the major radius ''R'' (according to ''B(R)''). | ||
The system is operated close to the strong [[TJ-II:Electron Cyclotron Resonant Heating|ECR heating source]] (f<sub>ECRH</sub> = 53.2 GHz). | The system is operated close to the strong [[TJ-II:Electron Cyclotron Resonant Heating|ECR heating source]] (f<sub>ECRH</sub> = 53.2 GHz). | ||