Physics
Scientific paper
Apr 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002aipc..611...75n&link_type=abstract
SUPERSTRONG FIELDS IN PLASMAS: Second International Conference on Superstrong Fields in Plasmas, Second International Conference
Physics
Plasma Production And Heating By Laser Beams, X-Ray And Gamma-Ray Measurements
Scientific paper
Observation of line radiation emanating from inner shell transitions in partially ionized high Z material is suggested as a diagnostic method for heating of dense plasma with an ultra-short high-intensity laser pulse. A new atomic-kinetics code specified for the analysis of the ionization-shift Kα lines was developed to derive electron temperature of the bulk plasma heated by hot electrons. Chlorine Kα to Cl15+ Heα lines from a solid planar target were observed with a 1 TW laser system at ILE Osaka. Comparison of the experimental results with the code prediction infers a ~100 eV temperature plasma on the target surface with a depth of about 0.6 μm at 1.5×1017 W/cm2. Dependence of the temperature on laser intensity was found to be very weak. .
Förster E.
Kawamura Taichi
Kitagawa Yoshinori
Kodama Ryosuke
Koike F.
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