Electron Density and Collision Frequency Studies Using a Resonant Microwave Cavity as a Probe

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Description

Electron densities and collision frequencies were obtained on a number of gases in a dc discharge at low pressures (0.70-2mm of Hg). These measurements were performed by microwave probing of a filament of the dc discharge placed coaxially in a resonant cavity operating in a TM₀₁₀ mode. The equipment and techniques for making the microwave measurements employing the resonant cavity are described. One of the main features of this investigation is the technique of differentiating the resonance signal of the loaded cavity in order to make accurate measurements of the resonant frequency and half-power point frequencies.

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vi, 258 leaves : ill.

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Freeman, Ronald Harold May 1973.

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  • Freeman, Ronald Harold

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Electron densities and collision frequencies were obtained on a number of gases in a dc discharge at low pressures (0.70-2mm of Hg). These measurements were performed by microwave probing of a filament of the dc discharge placed coaxially in a resonant cavity operating in a TM₀₁₀ mode. The equipment and techniques for making the microwave measurements employing the resonant cavity are described. One of the main features of this investigation is the technique of differentiating the resonance signal of the loaded cavity in order to make accurate measurements of the resonant frequency and half-power point frequencies.

Physical Description

vi, 258 leaves : ill.

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UNT Theses and Dissertations

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  • May 1973

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  • March 26, 2014, 9:30 a.m.

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  • June 12, 2014, 12:11 p.m.

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Citations, Rights, Re-Use

Freeman, Ronald Harold. Electron Density and Collision Frequency Studies Using a Resonant Microwave Cavity as a Probe, dissertation, May 1973; Denton, Texas. (digital.library.unt.edu/ark:/67531/metadc279091/: accessed May 21, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; .