Czechoslovak Journal of Physics

, Volume 56, Supplement 2, pp B767–B773 | Cite as

Diagnostics of plasma jet instabilities using fast shutter imaging

  • O. Chumak
  • M. Hrabovský


The structure and stability of plasma jet were studied on the basis of statistical analysis of the images of the jet taken by a fast shutter camera. The space distribution of the mean value and the standard deviation of image brightness were evaluated from a sequence of images. The short exposure time ensures imaging of the momentary state of the jet while analysis of sequence of images provided information on jet fluctuations. The effects of arc current and anode position on thermal plasma jet were investigated. Arc power increase led to higher fluctuations of the jet, it although causes increase of the jet length.

Key words

plasma jet jet instabilities plasma fluctuation visualization 


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Copyright information

© Institute of Physics, Academy of Sciences of Czech Republic 2006

Authors and Affiliations

  • O. Chumak
    • 1
  • M. Hrabovský
    • 1
  1. 1.Thermal Plasma DepartmentInstitute of Plasma PhysicsPragueCzech Republic

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