Formation of the compression zone in a plasma flow generated by a magnetoplasma compressor

Solyakov, D. G.; Petrov, Yu. V.; Garkusha, I.E.; Chebotarev, V. V.; Ladygina, M. S.; Cherednichenko, T. N.; Morgal, Ya. I.; Kulik, N.V.; Staltsov, V.V.; Eliseev, D. V.

doi:10.1134/s1063780x13110081

Cited by 9 publications

(14 citation statements)

References 3 publications

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“…Electron temperature estimated for the periphery layers of the plasma stream is about 3…5 eV. There is a good match between these values and those obtained earlier [7] at the flow periphery with spectroscopic methods.…”

Section: Probe I-v Curve In Semi-logarithmic Scalesupporting

confidence: 86%

“…Since such a finding is the indication of the bi-Maxwellian EEDF, it points out two populations of electrons near the compression zone, which have temperatures of 6…7 and 60…70 eV, re-spectively. The high value of the electron temperature does not contradict ourresults obtained previously [7]. In the above mentioned research, the plasma temperature T = T e + T i , averaged along the compression zone with a 2…3 cm radius, was estimated based on the pressure balance equation and reached around 60…120 eV.…”

Section: Probe I-v Curve In Semi-logarithmic Scalesupporting

confidence: 66%

“…In the above mentioned research, the plasma temperature T = T e + T i , averaged along the compression zone with a 2…3 cm radius, was estimated based on the pressure balance equation and reached around 60…120 eV. For that, the plasma density was determined from the Stark broadening of HeII spectral line [7] and, as we mentioned earlier, averaged along the line of sight. The fact that the electron temperature turned out to be that high in the near-axis region explains the short lifetime of the electric probes.…”

Section: Probe I-v Curve In Semi-logarithmic Scalementioning

confidence: 99%

“…In many previous experiments, electron temperature was estimated based on the ratio of the intensities of different spectral lines [8,9] or the pressure balance equation for an azimuthal self-generated magnetic field displaced from the compression zone [7]. Both of these methods do not give a local value of the electron temperature.…”

Section: Introductionmentioning

confidence: 99%

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Measurement of the Local Electron Temperature in Self-Compressed Plasma Stream

Solyakov¹,

Volkova²,

Garkusha³

et al. 2021

Problems of Atomic Science and Technology

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The local electron temperature measurements with the double electric probe in the compression zone are presented. Electric probes make it possible to measure the electron temperature with a reasonably good spatial resolution. Double electric probe application for electron temperature measurements in the dense self-compressed plasma stream is discussed. We have shown experimentally that the electric probe operates in a diffusion regime.

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Section: Probe I-v Curve In Semi-logarithmic Scalesupporting

confidence: 86%

Section: Probe I-v Curve In Semi-logarithmic Scalesupporting

confidence: 66%

Section: Probe I-v Curve In Semi-logarithmic Scalementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Measurement of the Local Electron Temperature in Self-Compressed Plasma Stream

Solyakov¹,

Volkova²,

Garkusha³

et al. 2021

Problems of Atomic Science and Technology

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“…Nowadays, high-pressure UV emitters based on compressed plasma flows [20,21] is also under close consideration [22,23]. As an example of such devices, it is possible to consider a coaxial magnetic plasma compressor (MPC) of the erosion type [24].…”

Section: Introductionmentioning

confidence: 99%

Experimental Study of Irradiation of Thin Oxide and Mo/Si Multilayers by High Brightness Broadband VUV/UV Radiation and Their Degradation

et al. 2022

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This study discusses the main features of the irradiation of prospective multilayer coatings by VUV/UV radiation from compressed plasma flows. Such radiation is characterized by a broadband spectrum and high brightness fluxes. Oxide and Mo/Si bilayers were used as the basis of the reflective multilayers for the visible and UV ranges. A gas-dynamic response from the irradiated surfaces was studied with schlieren photography. The properties of original and irradiated multilayers were described with ultra violet visible infrared spectroscopy (UV-Vis-IR), X-ray diffraction (XRD), X-ray reflectometry, scanning electron microscopy (SEM) and other techniques. Data on the degradation of optical properties and surface morphology were obtained.

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Studies on the spatial evolution of pulsed helium plasma

Singha,

Ahmed,

Borthakur

et al. 2024

Contrib. Plasma Phys

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The high‐density transient plasma, streaming from a pulsed plasma accelerator (PPA), was diagnosed with a Triple Langmuir probe (TLP) for spatial mapping of the stream in terms of plasma density and temperature. A contour plot for density and temperature shows a distinct form of a highly dense island of plasma with varied plasma temperatures. The formation of such highly dense islands can be correlated with the formation of distinct plasma structures, as observed in astrophysical plasmas and fusion plasma. The results of TLP were supported by the intensity variation derived from signals of a photodetector system. The plasma stream imaged with high‐speed video camera also showed the density fluctuation inside the plasma stream. The estimated maximum density and temperature were ∼7.2 × 1020 m−3 and ∼28 eV, respectively.

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Formation of the compression zone in a plasma flow generated by a magnetoplasma compressor

Cited by 9 publications

References 3 publications

Measurement of the Local Electron Temperature in Self-Compressed Plasma Stream

Measurement of the Local Electron Temperature in Self-Compressed Plasma Stream

Experimental Study of Irradiation of Thin Oxide and Mo/Si Multilayers by High Brightness Broadband VUV/UV Radiation and Their Degradation

Studies on the spatial evolution of pulsed helium plasma

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