Application of natural luminescence for assessment of hard coal quality

The research attempts to determine the possibility of using the phenomenon of natural luminescence of matter to evaluate the quality of coal. For the experiment, a measuring station equipped with a photomultiplier was used to identify photons emitted by optically piqued matter. The process of measuring the number of photons emitted was performed automatically, to which the LabView programming environment was used. There was a difference in the number of photons within the tested groups of coal. It has been observed that there is a practical possibility of differentiating matter in terms of photon emission levels.