title: Coherent x-ray zoom condenser lens for diffractive and scanning microscopy.
abstract: We propose a coherent x-ray zoom condenser lens composed of two-stage deformable Kirkpatrick-Baez mirrors. The lens delivers coherent x-rays with a controllable beam size, from one micrometer to a few tens of nanometers, at a fixed focal position. The lens is suitable for diffractive and scanning microscopy. We also propose non-scanning coherent diffraction microscopy for extended objects by using an apodized focused beam produced by the lens with a spatial filter. The proposed apodized-illumination method will be useful in highly efficient imaging with ultimate storage ring sources, and will also open the way to single-shot coherent diffraction microscopy of extended objects with x-ray free-electron lasers.
authors.affiliation: Research Institute for Electronic Science, Hokkaido University, Kita 21 Nishi 10, Sapporo 001-0021, Japan.
authors.forename: Takashi
authors.initials: T
authors.lastname: Kimura
authors.forename: Satoshi
authors.initials: S
authors.lastname: Matsuyama
authors.forename: Kazuto
authors.initials: K
authors.lastname: Yamauchi
authors.forename: Yoshinori
authors.initials: Y
authors.lastname: Nishino
mesh_terms: D004867:Equipment Design; D019544:Equipment Failure Analysis; D007089:Image Enhancement / Q000295:instrumentation*; D007909:Lenses; D014961:X-Ray Diffraction / Q000295:instrumentation*; D055114:X-Ray Microtomography / Q000295:instrumentation*