A microwave interferometer with increased stability for diagnostics of steady-state plasma |
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Authors: | D A Nagornyi A G Nagornyi |
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Affiliation: | (1) Institute of Applied Physics, National Academy of Sciences of Ukraine, ul. Petropavlovskaya 58, Sumy, 40038, Ukraine |
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Abstract: | The schematic and results of studying an interferometer for a wavelength of 8 mm with homodyne frequency conversion for measuring the electron density of a steady-state plasma are described. The design of its waveguide system allows the drift of the indicated initial phase to be reduced to a level of ±0.1°/h. The maximum phase shift measured is 360°, the tolerable signal-power decay in plasma is 16 dB, and the maximum phase measurement error is ~5%. |
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