Calibration of integral diffraction coefficient of flat crystal

The flat crystal spectrometer is one of the fundamental tools to diagnose X-ray. Quasi-quantitative and quantitative analyses of X-ray spectra require calibrations of the flat crystal’s characteristic parameters, such as integral reflective coefficient and FWHM of the flat crystal’s rocking curve. Using BSRF 3B3 beam as the X-ray source, this article gives an indirect method to calibrate the flat PET crystal. Good results are obtained in the range of 2.1~6.0 keV and interrelated analysis is provided.