2.B X-Ray Imaging with Kirkpatrick-Baez Microscopes

This article describes the design, testing, and use of Kirkpatrick-Baez (KB) x-ray microscopes on OMEGA. These microscopes consist of grazingincidence mirror pairs arranged to reflect and focus x rays, thereby providing images of the x-ray-emitting region. KB microscopes are one of several practical devices that can be used to focus and collect x rays. Simpler x-ray-imaging devices are the pinhole camera and cameras involving codedaperture (typically Fresnel zone-plate) techniques.' These, however, do not use x-ray optics. The KB microscope2 and its axially symmetric relative, the Wolter both use the principle of grazing-incidence reflection of x rays to form images of the x-ray-emitting region.