Abstract: A method correcting a measured spectrum of X radiation, according to a number of channels Nc, each channel i corresponding to an energy range between Ei and Ei+?Ei, including: determining function ?ti,j(k) determining size of temporal deviation ?t interval separating two interactions with energy Ei and Ej, stacking of which leads to a detected energy value Ek; determining, from the function ?ti,j(k), probability function Pi,j(k) that an event counted in a channel k corresponds to a stack of two interactions, respectively of energies Ei and Ej; determining, from the probability function Pi,j(k), a stack spectrum as a part of the measured spectrum that corresponds only to the stacks alone; and calculating or estimating at least a first corrected spectrum, by the difference between the measured spectrum and the stack spectrum.

Abstract: A method correcting a measured spectrum of X radiation, according to a number of channels Nc, each channel i corresponding to an energy range between Ei and Ei+?Ei, including: determining function ?ti,j(k) determining size of temporal deviation ?t interval separating two interactions with energy Ei and Ej, stacking of which leads to a detected energy value Ek; determining, from the function ?ti,j(k), probability function Pi,j(k) that an event counted in a channel k corresponds to a stack of two interactions, respectively of energies Ei and Ej; determining, from the probability function Pi,j(k), a stack spectrum as a part of the measured spectrum that corresponds only to the stacks alone; and calculating or estimating at least a first corrected spectrum, by the difference between the measured spectrum and the stack spectrum.