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Evolution of shell nonuniformities near peak compression of a spherical implosion
V A Smalyuk1, V N Goncharov, J A Delettrez
1Laboratory for Laser Energetics, University of Rochester, 250 East River Road, Rochester, New York 14623, USA.
Physical Review Letters
|October 3, 2001
Abstract:
The evolution of shell modulations near peak compression of direct-drive spherical-target implosions has been measured using the 60-beam, 30-kJ UV OMEGA laser system. The spatial size and amplitude of shell-areal-density modulations decrease during the target compression, then increase during its decompression as expected. The shell uniformity at peak compression has been increased by reducing single-beam, laser-drive nonuniformity.