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MICROWAVE REFLECTION FROM SHOCK-PRODUCED PLASMAS

Technical Report ·
OSTI ID:4152128
Reflection measurements were made of very low power X-band microwaves axially incident on shock-produced xenon and krypton plasmas. The electron density profile at the advancing shock front was measured with a special high resolution transverse 60 kMc interferometric probe. On comparison with free space exponential plasma-microwave interaction theory, the measured reflection coeificients were always very significantly lower than the theoretical values, the greatest disagreement being at the lowest plasma densities. It is concluded that the theoretical development of non-uniform plasma-microwave interactions within a conducting wall non-resonant container would permit a better comparison of theory with experiment. It also appears that more may have to be known about shock front (electron ramp) electron temperatures and electron collision frequencies before exact comparisons between theory and experiment are possible. (auth)
Research Organization:
General Electric Co. Missile and Space Div., Valley Forge Space Technology Center, King of Prussia, Penna.
NSA Number:
NSA-18-001130
OSTI ID:
4152128
Report Number(s):
R63SD77; AD-417556
Country of Publication:
United States
Language:
English

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