National Natural Science Foundation of China under Grants(50772112,90922003,50872135);the Director Foundation of Anhui Institute of Optics and Fine Mechanics
Supported by the National Natural Science Foundation of China (Grant No. 50772112)
X-ray powder diffraction is an indispensable technique to study material structure, phase transition and so on. It is necessary for high quality diffraction data to get high-precision diffraction angle. This work prop...