Determining local inhomogeneities of rotating plasma density via microwave refraction

•We described the method to determine the local inhomogeneities in the rotating plasma.•It based on the spectrum/correlation analysis of reflected microwave signals from plasma at normal and oblique probing.•The analysis gives the possibility to determine the plasma density fluctuations, with the az...

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Bibliographic Details
Published inPhysics letters. A Vol. 383; no. 31; p. 125880
Main Authors Kovtun, Yu.V., Siusko, Y.V.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 07.11.2019
Subjects
Density
Frequency
Inhomogeneities
Microwave
Plasma
Refraction
Microwave
Plasma
Frequency
Inhomogeneities
Density
Refraction
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Summary:•We described the method to determine the local inhomogeneities in the rotating plasma.•It based on the spectrum/correlation analysis of reflected microwave signals from plasma at normal and oblique probing.•The analysis gives the possibility to determine the plasma density fluctuations, with the azimuthal mode m=3, angular frequency.•The method was tested using the mechanical model and in plasma which was created in a high power impulse reflex discharge. A method for determining local inhomogeneities of the rotating plasmas is proposed. This method is based on spectral and correlation analysis of the reflected signals from the plasma at normal and oblique microwave incidence. Experimental approbation of the method is made.
ISSN:0375-9601
1873-2429
DOI:10.1016/j.physleta.2019.125880