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Investigation of Laser Produced Plasma Using Space Resolved Soft X-Ray Al Spectrum and Multi-Layer Target Technique

Published online by Cambridge University Press:  25 September 2017

H. Zmora ,
A. Zigler  and
J. L. Schwob
H. Zmora
Affiliation:
Soreq Nuclear Research Centre, Yavne, Israel
A. Zigler
Affiliation:
Soreq Nuclear Research Centre, Yavne, Israel
J. L. Schwob
Affiliation:
Racah Institute of Physics, Hebrew University, Jerusalem, Israel

Extract

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H and He-like Al Lines and their inner-shell satellites were obtained from Al and Polyethylene layered targets irradiated by a Nd-glass laser at a power flux of 2.1013 W/cm2 . Spatial resolution was achieved using a flat crystal spectrograph incorporating a wire shadow technique. Spatial profiles of Te and ne in the expanding plasma were deduced from line intensity ratios.

By varying the Al layer location in the target, the non-thermal origin of Al Kα radiation is investigated and the penetration depth of the heat wave front is determined. Comparison is made with classical transport mechanisms.