Measurements of the gas-kinetic pressure in plasma flows emerging from a micropinch discharge by means of laser interferometry

Measurements of the gas-kinetic pressure in plasma flows emerging from a micropinch discharge by means of laser interferometry

A new method for measuring the gas-kinetic pressure in pulsed plasma flows is developed in which an acoustic line in the form of a thin rod built in the optical scheme of a laser interferometer is used as a detector. The time evolution of the gas-kinetic pressure in particle flows emerging from a mi...

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Veröffentlicht in:Plasma physics reports 2014-04, Vol.40 (4), p.290-297
Hauptverfasser: Kuznetsov, A. P., Byalkovskii, O. A., Gubskii, K. L., Kozin, G. I., Protsenko, E. D., Dodulad, E. I., Savjolov, A. S.
Format: Artikel
Sprache:eng
Schlagworte:
Atomic
Diagnostics of Pulsed Systems
Molecular
Optical and Plasma Physics
Physics
Physics and Astronomy
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Zusammenfassung:A new method for measuring the gas-kinetic pressure in pulsed plasma flows is developed in which an acoustic line in the form of a thin rod built in the optical scheme of a laser interferometer is used as a detector. The time evolution of the gas-kinetic pressure in particle flows emerging from a micropinch discharge (a low-inductance vacuum spark) was studied. Due to the wide dynamic range of the method (∼10 5 ), it can be applied in various plasma devices with a wide range of parameters.
ISSN:1063-780X
1562-6938
DOI:10.1134/S1063780X14040047