Figure 4
(a) Definition of the detector coordinate system (X, Y), diffractometer coordinate system (x, y, z) and direction of positive rotation ω, χ and φ for the goniometer spindle axis. (b) Detector parameters. Rotx and Roty represent the detector position angles. Rx, Ry and Rz are the detector mis-setting angles. L2 is the distance between the crystal and the detector face center. The x- and z-axis directions of the detector coordinate system are reversed to calculate the peak position in the diffractometer coordinate system. |