Measurements were made of the electron density in a low‐density supersonic argon plasma jet flow by the stagnation point Langmuir probe method and by a microwave interferometric technique. The two methods yielded results in reasonably good agreement. It was also possible to obtain some information on the radial distribution of ionization in the jet from the microwave measurements.
REFERENCES
1.
2.
C. L. Brundin, L. Talbot, and F. S. Sherman, “Flow Studies in an Arc‐Heated Low Density Supersonic Wind Tunnel,” University of California Institute of Engineering Research Rept. HE‐150‐181 (1960).
Also see F. S. Sherman and L. Talbot, “Progress in Aeronautics and Rocketry,” in Hypersonic Flow Research, Vol. 7 (Academic Press, Inc., New York, 1962), p. 581.
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L. Spitzer, Physics of Fully Ionized Gases (Interscience Publishers, Inc., New York, 1956).
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J. Stratton, Electromagnetic Theory (McGraw‐Hill Book Company, Inc., New York, 1941), Chap. V.
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C. B. Wharton, “Microwave Diagnostics for Controlled Fusion Research,” University of California, Lawrence Radiation Laboratory Report UCRL 4836 Rev. (1957).
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S. C. Brown, Basic Data of Plasma Physics (Tech. Press, Cambridge, Massachusetts, and John Wiley & Sons, Inc., New York, 1959), Chap. I.
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© 1963 The American Institute of Physics.
1963
The American Institute of Physics
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