Evolution of shell nonuniformities near peak compression of a spherical implosion.
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.
Smalyuk
V A
VA
Laboratory for Laser Energetics, University of Rochester, 250 East River Road, Rochester, New York 14623, USA.
Goncharov
V N
VN
Delettrez
J A
JA
Marshall
F J
FJ
Meyerhofer
D D
DD
Regan
S P
SP
Yaakobi
B
B