Determining local inhomogeneities of rotating plasma density via microwave refraction

Kovtun, Yu. V.; Siusko, Y.V.

doi:10.1016/j.physleta.2019.125880

Cited by 3 publications

(9 citation statements)

References 16 publications

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“…Two methods based on refraction was proposed [41][42][43][44][45][46][47]. The first one is a method of plasma interferometry [41][42][43][44][45].…”

Section: Expanding the Field Of Application Of Microwave Refraction Fmentioning

confidence: 99%

“…The first one is a method of plasma interferometry [41][42][43][44][45]. The second one is the method of determining local inhomogeneities of rotating plasma density via microwave refraction [46,47].…”

Section: Expanding the Field Of Application Of Microwave Refraction Fmentioning

confidence: 99%

“…The method for determining local inhomogeneities of the rotating plasma was checked and worked out on a rotating cylinder. The approbation was made on the rotating plasma of a pulsed reflex discharge [46,47]. The one variant of the cylinder was made with three grooves which imitated plasma electron density oscillations with an azimuthal mode m = 3.…”

Section: Dрetermining Local Inhomogeneities Of Rotating Plasmamentioning

confidence: 99%

“…It was shown that with using spectral and correlation analysis to the reflected signals, in the case of a cylinder with grooves, it is possible to find the number of grooves, as well as the angular frequency of rotation, the angle of azimuthal displacement between the grooves. Applying a similar technique for the case of a rotating plasma in [46], the angles of the azimuthal displacement of the grooves were determined as ≈ 120, 123, 118°; the angular frequency of rotation, which reaches the value (2...4)•10 4 rad/s. The experiments have shown the fundamental possibility of using this method for diagnosing local inhomogeneities in plasma.…”

Section: Dрetermining Local Inhomogeneities Of Rotating Plasmamentioning

confidence: 99%

See 3 more Smart Citations

An Application of Microwaves Refraction for Inhomogeneous Plasma Diagnostic

Siusko¹,

Kovtun²

2021

Problems of Atomic Science and Technology

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A brief review of the main microwave diagnostics methods of inhomogeneous plasma based on the refraction of microwaves is given. These methods make it possible to determine the plasma density distribution, the magnetic field distribution, the electron collision frequency, and the electron temperature profile. In addition, the determination of the average density of the peripheral plasma layers and the local inhomogeneities of the rotating plasma are also possible. The effect of refraction on the accuracy of determining the plasma parameters by using microwave methods for plasma diagnostics is considered.

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“…Two methods based on refraction was proposed [41][42][43][44][45][46][47]. The first one is a method of plasma interferometry [41][42][43][44][45].…”

Section: Expanding the Field Of Application Of Microwave Refraction Fmentioning

confidence: 99%

Section: Expanding the Field Of Application Of Microwave Refraction Fmentioning

confidence: 99%

Section: Dрetermining Local Inhomogeneities Of Rotating Plasmamentioning

confidence: 99%

Section: Dрetermining Local Inhomogeneities Of Rotating Plasmamentioning

confidence: 99%

See 2 more Smart Citations

An Application of Microwaves Refraction for Inhomogeneous Plasma Diagnostic

Siusko¹,

Kovtun²

2021

Problems of Atomic Science and Technology

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“…The method for the determining local inhomogeneities of the rotating plasma was proposed in the study by Kovtun and Siusko [15]. Approbation of the method was tested on a mechanical model [15,16]. The method is based on spectral and correlation analysis of refl ected signals from the plasma during normal and oblique microwave probing.…”

Section: Introductionmentioning

confidence: 99%

Using microwave refraction to determine local inhomogeneities of a rotating plasma

2023

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To determine the local inhomogeneities of a rotating plasma, the method based on microwave refraction was used. The method is based on spectral and correlation analysis of the reflected signals from the rotating plasma layer at normal and inclined microwave incidence. This method allowed us to determine local inhomogeneities of plasma electron density, angles of azimuthal displacement of grooves, and its angular frequency of rotation. Using an additional 4th horn antenna, in contrast to previous works, it was possible to find and analyze two regions with azimuthal inhomogeneities in the rotating plasma. Analysis of the reflected signals shows the presence of four grooves, and the angular frequency of rotation ω = 1.16 × 104 rad/s was also determined.

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Determining the Angular Frequency of Rotating Cylinder via Microwave

Kovtun

Siusko

2020

2020 IEEE Ukrainian Microwave Week (UkrMW)

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Determining local inhomogeneities of rotating plasma density via microwave refraction

Cited by 3 publications

References 16 publications

An Application of Microwaves Refraction for Inhomogeneous Plasma Diagnostic

An Application of Microwaves Refraction for Inhomogeneous Plasma Diagnostic

Using microwave refraction to determine local inhomogeneities of a rotating plasma

Determining the Angular Frequency of Rotating Cylinder via Microwave

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