Astronomy and Astrophysics – Astrophysics
Scientific paper
May 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aps..aprr14010f&link_type=abstract
American Physical Society, April Meeting, 2004, May 1-4, 2004, Denver, Colorado April 2004, MEETING ID: APR04, abstract #R14.010
Astronomy and Astrophysics
Astrophysics
Scientific paper
Physical properties of hot dense matter at megabar pressures are the physical basis for astrophysics, planetary physics, energetics, ICF target design, beam-matter interaction, and for many other applications. The new experimental results of pressure ionization investigation of the hot dense matter generated by multiple shock compression of metals, H2, He, noble gases, S, I, fullerene C60, and H2O in the megabar pressure range are presented. High energy plasma states were generated by single and multiple shock compression and adiabatic expansion of initially warm and cryogenic solid, liquid, porous and low-density foams (aerogels) samples. These data in combination with exploding wire conductivity measurements demonstrate an ionization rate increase up to ten orders of magnitude as a result of compression of dense matter. Multiple shock compression of H2, Ar, He, Kr, Ne, Xe, and fullerene C60 in initially gaseous and cryogenic liquid state allows to measure the electrical conductivity, equation of state, and laser beam reflectivity. Thermal and pressure ionization of strongly coupled states of matter is the most prominent effects under the experimental conditions. It was shown that plasma compression strongly deforms the ionization potentials, emission spectra and scattering cross-sections of the neutrals and ions in the strongly coupled matter. Comparison of the data obtained with theoretical models (percolation, Mott transition, Zeeman and Lorenz approach etc.) is presented. In contrast to the plasma compression experiments the multiple shock compression of solid Li, Na, and Ca shows dielectrization of these elements.
No associations
LandOfFree
Nonideal Plasma Under Exreme Conditions Generated by Intense Shock Waves does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Nonideal Plasma Under Exreme Conditions Generated by Intense Shock Waves, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Nonideal Plasma Under Exreme Conditions Generated by Intense Shock Waves will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1181001