Physics – Plasma Physics
Scientific paper
Oct 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aps..dppbo2004n&link_type=abstract
American Physical Society, 48th Annual Meeting of the Division of Plasma Physics, October 30-November 3, 2006, abstract #BO2.004
Physics
Plasma Physics
Scientific paper
Cumulative plasma jets formed by imploding hollow cones and wedges are observed. The cones, made from 4-10 mg/cm^2 Ni or Al foils, with a base diameter of 500 μm and 90 - 130^o apex angles, are imploded by a 1.054-μm wavelength, ˜4 ns FWHM laser pulse focused to ˜ 2*10^13 W/cm^2 on their outer surface. Jet shape, location, and densities are measured with monochromatic radiography utilizing 0.65 keV x-rays. For certain cone geometries, cumulative jets with ion densities >10^19 cm-3 propagate at velocities >10 km/sec. The interaction of such jets with an ambient medium and the resulting shock structures can be used for lab simulation of aspects of various astrophysical phenomena such as jets produced in supernovae explosions or accretion of plasma onto compact objects (black hole, neutron star or white dwarf).
Aglitskiy Yefim
Grun Jacob
Laming Martin J.
Manka Charles
Miller Christopher
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