Supersonic propagation of ionization waves in an underdense, laser-produced plasma

Supersonic propagation of ionization waves in an underdense, laser-produced plasma

A laser-driven supersonic ionization wave propagating through a millimeter-scale plasma of subcritical density up to 2-3 keV electron temperatures was observed. Propagation velocities initially ten times the sound speed were measured by means of time-resolved x-ray imaging diagnostics. The measured...

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Bibliografiske detaljer
Main Authors: Constantin, C, Back, C, Fournier, K, Gregori, G, Landen, O, Glenzer, S, Dewald, E, Miller, M
Format: Journal article
Sprog:English
Udgivet: 2005
Beskrivelse
Summary:A laser-driven supersonic ionization wave propagating through a millimeter-scale plasma of subcritical density up to 2-3 keV electron temperatures was observed. Propagation velocities initially ten times the sound speed were measured by means of time-resolved x-ray imaging diagnostics. The measured ionization wave trajectory is modeled analytically and by a two-dimensional radiation-hydrodynamics code. The comparison to the modeling suggests that nonlocal heat transport effects may contribute to the attenuation of the heat-wave propagation. © 2005 American Institute of Physics.

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