Hydrodynamic Energy Transfer Between Two Foils of a Laser Irradiated Double Foil Target at 0.35 micrometer Wavelength

摘要

Double-foil targets have been irradiated with 0.35 mu m laser wavelength at irradiance of 2 x 10 sup 14 W cm sup -2 . The hydrodynamic behaviour has been investigated by means of time and space-resolved X-ray backlighting. Comparison with a 1D Lagrangian code shows discrepancies between measured and calculated velocities attributed to 2D effects. First results obtained with a 2D code are presented for a single thin target and for a double-foil target when the foil separation is equal to 40 mu m. (ERA citation 12:006174)