We report an experimental investigation and comparison with simulation of the x-ray focusing of a flat, square profile microchannel plate. We use x rays with an energy of ~1.5 keV from a laser-produced plasma. The images were recorded with x-ray film. We find the focal structure to be consistent with theoretical expectations. The angular resolution of the focus is 0.96 mrad, which is a major improvement over previous results. The measured peak intensity gain is 27 ± 4, which is ~33% of that for a perfect optic.
© 1996 Optical Society of America
A. G. Peele, K. A. Nugent, A. V. Rode, K. Gabel, M. C. Richardson, R. Strack, and W. Siegmund, "X-ray focusing with lobster-eye optics: a comparison of theory with experiment," Appl. Opt. 35, 4420-4425 (1996)