Method of analysing a sample of material by diffractometry and associated diffractometer

A method of analyzing a sample of material by diffractometry, the method comprising:

• providing a diffractometer that comprises:
• a source adapted to emit an incident beam with a central axis,
• a detector that includes
• a detector material having a detection plane a proximate to the sample of material,
• spectrometry measurement means, adapted to measure an energy released by each photon interaction with the detector material and to establish at least one energy spectrum S(E);
• and
• a detection collimator associated with the detector, the detector and the detection collimator arranged so as to have a detection axis D forming a diffraction angle θ with the central axis X of the incident beam;
• and
• irradiating the sample with the incident beam;
• establishing a plurality of energy spectra;
• and
• combining the energy spectra,
• wherein the detector comprises a pixelated detector including means for locating an interaction of a photon with the detector material, and
• the method further comprises:
• defining a partition of the detector in virtual pixels, and associating one of the virtual pixels with each photon interaction;
• establishing a measured energy spectrum Si(E) for each virtual pixel (Pi) of the detector;
• and
• combining energy spectra measured for different virtual pixels (Pi) of the detector.