title: X-ray Applications with Glass-Capillary Optics.
abstract: Glass capillaries have unique properties for guiding X-rays in experiments with micrometer precision. Design considerations of such optics are presented for X-ray applications involving macromolecular crystallography, tomography and high-pressure experiments at the Cornell High Energy Synchrotron Source. The authors propose that crystallography with protein crystals is feasible on a 50 mum or smaller scale using capillary optics along with a cold gas stream and precision rotation stages. For computed tomography experiments, capillary optics can produce X-ray beams on a submicrometer scale. The distribution of X-rays passing through the sample can then be blown up in size with a secondary capillary optic to match the ~10 mum pixel size of CCD detectors. For high-pressure experiments in diamond-anvil cells, mono- and polycapillary optics may provide 1-50 mum diameter beams for diffraction or X-ray absorption fine-structure applications.
authors.forename: D H
authors.initials: DH
authors.lastname: Bilderback
authors.forename: D J
authors.initials: DJ
authors.lastname: Thiel
authors.forename: R
authors.initials: R
authors.lastname: Pahl
authors.forename: K E
authors.initials: KE
authors.lastname: Brister