Powder x-ray diffraction system with a curved monochromator for high-pressure and low-temperature use

Abstract

A powder x-ray diffraction system operated at high pressure and low temperature has been developed for a conventional x-ray generator. An incident x ray is focused by a curved monochromator on a sample in a diamond anvil cell coupled with a cryostat with a helium gas closed-cycle refrigerator. We demonstrated a high-quality diffraction pattern with sufficient signal-to-noise ratio obtained for sodium chloride at 12 GPa and 6 K by this system using an imaging-plate detector.