Coal analysis using x-rays

摘要

Method and apparatus for the determination of ash content (and of individual elements) in coal, comprising irradiating a sample of the coal with X-rays in the 1-40 keV energy range, detecting the intensity of the X-ray fluorescence spectra for at least the elements aluminium, calcium, silicon and iron, detecting the intensity of a portion of the backscattered X-ray radiation in the range 12-14 keV and processing the detected intensities to give a corrected value for the concentration of ash in the sample.