Short-pulse high-power microwave propagation in the atmosphere
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Date
1988-02-12Author
Sullivan, C.
Destler, William
Rodgers, J.
Segalov, Z.
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Show full item recordAbstract
The propagation of high-power 00-200 kW/cm2
) short-burst (3-30 ns) microwave pulses in
the atmosphere has been studied experimentally. Microwave power from a large orbit gyrotron
operating at 9.6 GHz is focused by a large-diameter parabolic reflector into a test cell. The
ambient pressure in the test cell was varied over a wide range and the microwave power density
necessary for atmospheric breakdown has been determined as a function of ambient pressure
and pulse duration. Measurements of the microwave pulse duration before and after
breakdown have been obtained to determine the extent to which microwave energy is absorbed
or reflected by the breakdown plasma. Results are compared with available theory and
previously reported experiments.
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