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Electron cloud formation in an air environment with 1600 seed electrons at . The bottom of each image coincides with the dielectric surface. Electric field’s rise time is identical to that of the experimental setup.
Normalized electric field vs delay time multiplied by pressure in both air (gray diamonds) and nitrogen (gray squares) environments under ideal excitation at gigahertz frequencies. The graph also shows volume breakdown curve from Gould and Roberts (black line).
Normalized electric field vs delay time multiplied by pressure in air. The graph shows data collected on the current test setup (gray boxes), simulated data (black diamonds), and a curve fit of all the experimental data in air (light gray line).
Flashover delay times for both experimental (open symbols) and simulated (closed symbols) setups vs background pressure.
Comparison of EEDF’s for air and nitrogen environments generated by the simulation, EEDF’s are averaged over two periods for conditions with zero net electron gain (nitrogen: 20 electrons and oxygen: 1600 electrons).
Dependence of flashover delay time on frequency of applied field. All calculations performed at with a maximum applied field amplitude.
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