Patent ID: 6229874
Filing Date: 2001-05-08
Classification: G21K

Abstract:
A monochromator comprising:a base member having an asymmetric cut curved-surface obtained by cutting a cylindrical body at a maximum asymmetric angle .alpha..sub.0 with respect to a plane orthogonal to a center axial line of the cylindrical body to obtain an ellipsoidal asymmetric cut surface, and then curving the thus obtained ellipsoidal asymmetric cut surface; anda monochromator crystal bonded to said asymmetric cut curved-surface of the base member;wherein said asymmetric cut curved-surface of the base member is shaped along a peripheral surface of an imaginary cylindrical body having a radius R.sub.0, and an asymmetric angle and a radius of curvature for a desired wavelength are simultaneously tuned by rotating said base member around a center axial line thereof.