Abstract
A study of the variation of the effective ablation pressure with thickness of laser irradiated thin gold foils is presented. Gold foils (2.5 and 12.0 μm thick) were irradiated by a glass laser (1.06 μm wavelength, 5-ns pulse duration) in 1011–1013 W/cm2 irradiance range. Ablation pressure and its scaling is found to be higher for the 12-μm-thick gold target. The results are consistent with other results obtained on the basis of enhanced x-ray transmission through thin gold foils. Theoretical estimates of the x-ray transport are carried out to support this.
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