Intense x-ray emission in the interaction of a laser plasma with a solid surface
Presnyakov L P. , Shevel'ko A. P.
When the burst of hot laser plasma reaches a solid surface, there is intense x-ray emission. Specifically, the lines of the principal series of hydrogenlike and heliumlike ions are several times more intense than the emission in the same lines in the hot core of a laser plasma. The observed effect is attributed to a charge exchange of multiply charged ions with neutral atoms and low-charge ions near the solid surface.