Patent ID: 6731719
Filing Date: 2004-05-04
Classification: G01N

Abstract:
A method of X-ray diffractometery, comprising the stops of:mounting the sample on a sample state; directing X-rays through a double pinhole collimator onto a sample to be measured; diffracting the X-rays diffracted by the sample with an analyser crystal onto a detector; rotating the sample and rotating the analyser crystal and the detector about coaxial axes; measuring the diffracted X-ray intensity as a function of the angle of rotation of the sample and the angle of rotation of the analyser crystal and detector; rotating the analyser crystal and detector to a predetermined position; rotating the sample whilst keeping the analyser crystal and detector in the predetermined position and measuring the X-rays reaching the detector as a function of angle of sample rotation; determining the sample rotation angle at which the measured X-rays are at a peak and rotating the sample to that angle; and rotating the sample and the analyser crystal and detector about coaxial axes; and measuring the diffracted X-ray intensity as a function of rotation angle of the sample and the angle of rotation of the analyzer crystal and detector.