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Measurements of Spontaneous Currents and Magnetic Fields in Laser-Produced Plasmas

  • Michel G. Drouet

Abstract

An extensive experimental study of the associated electrical currents and magnetic fields generated in plasmas produced by nanosecond CO2 and Nd-glass laser irradiation of a copper target in a background of air, N2, Ar and He at pressure ranging from 10-5 to atmospheric was conducted. Space and time resolved measurements of current, magnetic field, UV radiation and laser pulse structure were performed. The results show correlations between a) the distribution of laser target irradiation and the distribution of emitted current, and b) the dependences, on the background pressure, of both the UV radiation and the magnetic field, and reveal a two-phase expansion — diffusion and convection — of the magnetic field.

Keywords

Magnetic Field Laser Pulse Laser Plasma Background Pressure Wire Probe 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Plenum Press, New York 1977

Authors and Affiliations

  • Michel G. Drouet
    • 1
  1. 1.Direction Sciences de baseInstitut de recherche de l’Hydro-QuébecVarennesCanada

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