FRESNEL ZONE PLATE AND X-RAY MICROSCOPE USING THE FRESNEL ZONE PLATE

摘要

[PROBLEMS] To provide a Fresnel zone plate having a complex irradiation function capable of improving resolution even when the outermost opaque band width cannot be reduced and an X-ray microscope using the Fresnel zone plane. [MEANS FOR SOLVING PROBLEMS] A Fresnel zone plate (1) having complex irradiation function have opaque bands (3) and transparent bands (4) arranged alternately in the radial direction from the center of a flat transparent substrate (2). The Fresnel zone plate have a transmission widow (7) so that a part of plane wave vertically applied onto the upper surface of the substrate (2) vertically advances directly to a sample (6) arranged below the Fresnel zone plate (1).