Protein Crystallography Beam Line at MIRRORCLE.

A Protein crystallography beam line using MIRRORCLE-6X, which is a compact synchrotron for hard x-ray production, is under construction. Since MIRRORCLE-6X provides hard x-ray with high brightness, it is suitable for x-ray source of accurate protein crystallography research in a small laboratory. The divergent x-ray emitted from a target is focused by a condensing minor. The minors used for the condensing minor are a multi layer minor of Wolter type and a rotating ellipsoidal minor. Photon energies dispersed by them are set to the K-edge of Zn and of Se, respectively. The flux at a focusing point is expected to be 10³ ∼ 104 times larger than that without the condensing minor. The focusing size is less than 100 μm of diameter. The x-ray after the minor is transformed to parallel beam using a Fresnel zone plate and irradiated on a protein crystal. The diffraction figure is detected by the an imaging-plate detector. [ABSTRACT FROM AUTHOR]