A biresonant plasma source based on a gapped linear microwave vibrator |
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Authors: | S I Gritsinin A M Davydov I A Kossyi K A Arapov A A Chapkevich |
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Institution: | 1.Prokhorov Institute of General Physics,Russian Academy of Sciences,Moscow,Russia;2.Gubkin State University of Oil and Gas,Moscow,Russia |
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Abstract: | The operating principle of a novel microwave plasma source—a linear microwave vibrator with a gap—is discussed. The source
is placed on a microwave-transparent window of a chamber filled with a plasma-forming gas (argon or methane). The device operation
is based on the combination of two resonances—geometric and plasma ones. The results of experimental tests of the source are
presented. For a microwave frequency of 2.45 GHz, microwave power of ≤1 kW, and plasma-forming gas pressure in the range 5
× 10−2–10−1 Torr, the source is capable of filling the reactor volume with a plasma having an electron density of about 1012 cm−3 and electron temperature of a few electronvolts. |
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