| Issue |
J. Phys. IV France
Volume 133, June 2006
|
|
|---|---|---|
| Page(s) | 985 - 988 | |
| DOI | https://doi.org/10.1051/jp4:2006133198 | |
| Published online | 16 June 2006 | |
J.-C. Gauthier, et al.
J. Phys. IV France 133 (2006) 985-988
DOI: 10.1051/jp4:2006133198
Optimization of plasma uniformity in laser-irradiated underdense targets
M.S. Tillack1, K.L. Sequoia1, J. O'Shay1, C.A. Back2 and H.A. Scott31 University of California San Diego, 9500 Gilman Drive, La Jolla, CA 92093-0438, USA
2 General Atomics, PO Box 85608, San Diego, CA 92186-5608, USA
3 Lawrence Livermore National Laboratory, PO Box 808, Livermore, CA 94561, USA
Abstract
We used the Hyades [1] and Helios [2]
radiation-hydrodynamic simulation tools, and the Cretin atomic kinetics code
[3] to model low-density SiO2 aerogel carriers doped with trace amounts
of Ti and subjected to high-energy pulsed laser irradiation. Underdense
targets are expected to respond to laser irradiation more uniformly as
compared with solid targets, and therefore provide a better platform upon
which to perform measurements of the properties of warm dense matter. We
report modeling results for several cases of interest, with laser
intensities in the range of
-
, SiO2
densities in the range of 2-8 mg/cm3 and Ti doping in the range of
0-6%. Recommendations are given for the conditions under which
relatively uniform temperature and density can be obtained.
© EDP Sciences 2006