Supersonic plasma jet interaction with gases and plasmas

Details Supersonic plasma jet interaction with gases and plasmas Supersonic plasma jet interaction with gases and plasmas

Aug 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009ap%26ss.322...11n&link_type=abstract

Astrophysics and Space Science, Volume 322, Issue 1-4, pp. 11-17

Astronomy and Astrophysics

Astrophysics

Scientific paper

The interaction of supersonic plasma jets with dense gases and plasmas has been studied experimentally and theoretically. Collimated plasma jets were generated from the laser pulse interaction with solid targets. The jet propagates with the velocity exceeding 400 km/s and transports the energy of a few kJ/cm2. The interaction of such a jet with an Ar and He gases at various pressures has been studied by using optical and X-ray diagnostics. Qualitative estimates and numerical simulations with a radiative hydrodynamic code explain a sequence of physical processes during the interaction. Experimental and numerical results show that, by changing ambient material, the working surface structure changes from an adiabatic outflow to a radiative cooling jet. The applications of this phenomenon to astrophysical conditions and the inertial confinement fusion are discussed.

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