We measure the two-dimensional, near-field spatial distribution of a 1
40-Angstrom nickel-like silver x-ray laser at the output aperture with
high magnification using a curved multilayer x-ray mirror to image th
e output onto an x-ray charge-coupled device camera. Lasing is created
by illuminating silver slab targets with a pair of 75 ps laser pulses
separated by 2.2 nsec from the Vulcan laser. The two-dimensional, hig
h-resolution, spatial image shows the x-ray laser source size and its
position relative to the target surface. A dramatic change in both the
position and source size are observed for the refraction compensating
curved target as compared with the flat targets.