Microwave diagnostics of small plasma objects

Journal Article · Mon Aug 01 04:00:00 EDT 2005 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.1996835· OSTI ID:20714008

Shneider, M N; Miles, R B ^[1]

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1. Department of Mechanical and Aerospace Engineering, Princeton University, Princeton, New Jersey 08544 (United States)

We suggest an approach for using microwave radiation in collisional, weakly ionized plasma diagnostics when plasma dimensions are relatively small compared with the microwave wavelength. We show that in this case the microwave diagnostics can be based on the measurement of the radiation scattered by an oscillating plasma dipole, similar to the Rayleigh scattering of an atom in light. Examples considered show possibilities of obtaining the decaying plasma parameters (time dependence of charge density and information about loss rates, for instance) from the measured scattered signal.

• OSTI ID: 20714008
• Journal Information: Journal of Applied Physics, Journal Name: Journal of Applied Physics Journal Issue: 3 Vol. 98; ISSN JAPIAU; ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ATOMS
CHARGE DENSITY
DIPOLES
MICROWAVE RADIATION
PLASMA
PLASMA DENSITY
PLASMA DIAGNOSTICS
PLASMA WAVES
RAYLEIGH SCATTERING
SIGNALS
TIME DEPENDENCE
WAVELENGTHS