Abstract: Disclosed is a method for determining physical properties of a test sample using a spectrometric detector with at least three channels, consisting of: performing measurements in each of the channels on the test sample, calculating variables, each formed from a combination of measurements of different channels, and applying a weighting and bias matrix to the variables, enabling the investigated physical properties of the test sample to be determined.

Abstract: Provided is a device for spectrometry of a radiation of photons, including a detector configured to receive the radiation and to deliver, at an output, an electrical signal that is a function of the radiation (X) received, a reference database that can be parameterised by means of a first parameter, a comparator configured to establish a comparison between the electrical signal and the reference signal, the comparator delivering a signal (E(t)) representative of the energy of each photon of the radiation and a quality factor (B(t)) of the comparison, and a feedback loop enabling the first parameter of the reference database to be adapted so as to optimise the quality factor (B(t)).

Abstract: Disclosed is a method for determining physical properties of a test sample using a spectrometric detector with at least three channels, consisting of: performing measurements in each of the channels on the test sample, calculating variables, each formed from a combination of measurements of different channels, and applying a weighting and bias matrix to the variables, enabling the investigated physical properties of the test sample to be determined.

Abstract: Provided is a device for spectrometry of a radiation of photons, including a detector configured to receive the radiation and to deliver, at an output, an electrical signal that is a function of the radiation (X) received, a reference database that can be parameterised by means of a first parameter, a comparator configured to establish a comparison between the electrical signal and the reference signal, the comparator delivering a signal (E(t)) representative of the energy of each photon of the radiation and a quality factor (B(t)) of the comparison, and a feedback loop enabling the first parameter of the reference database to be adapted so as to optimise the quality factor (B(t)).