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Study of a Pulsed Air Flow in a Large Vacuum Chamber by Means of a Commercial Ionization Gauge

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Abstract

A method for creating a pressure gradient by pulsed injection of air into a large vacuum chamber for laboratory simulation of plasma phenomena in a vertically nonuniform atmosphere is proposed. The dynamics of subsonic and transonic air flows at different background chamber pressures is studied. The feasibility of creating and detecting instantaneous pressure drops by more than two orders of magnitude on a scale of about one meter is shown. Features of the operation of the PMI-10-2 ionization gauge used for pressure measurements in a pulsed gas flow are discussed.

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ACKNOWLEDGMENTS

This work was performed within the frame of State Assignement to the Institute of Applied Physics, Russian Academy of Sciences (project no. 0035-2018-0021) and was supported by the Ministry of Education and Science of the Russian Federation (contract no. 14.Z50.31.0007) and the Russian Foundation for Basic Research (project no. 17-05-01182-a).

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Authors and Affiliations

  1. Institute of Applied Physics, Russian Academy of Sciences, 603950, Nizhny Novgorod, Russia

    S. V. Korobkov, M. E. Gushchin, A. V. Strikovskiy, K. N. Loskutov & A. A. Evtushenko

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  1. S. V. Korobkov
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  2. M. E. Gushchin
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  3. A. V. Strikovskiy
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  4. K. N. Loskutov
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  5. A. A. Evtushenko
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Correspondence to S. V. Korobkov.

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Translated by E. Chernokozhin

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Korobkov, S.V., Gushchin, M.E., Strikovskiy, A.V. et al. Study of a Pulsed Air Flow in a Large Vacuum Chamber by Means of a Commercial Ionization Gauge. Tech. Phys. 64, 27–33 (2019). https://doi.org/10.1134/S1063784219010171

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  • DOI: https://doi.org/10.1134/S1063784219010171

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