Patent ID: 11872071
Assignee: INSTITUT NATIONAL DES SCIENCES APPLIQUÉES
Field: Measurement (Instruments)
Classification: CPC A  G | IPC A  G

Claim 4:
5. The method of claim 4, further comprising:
obtaining the correction matrix in a calibrating phase, with no object between the radiation source and the detector, according to the following calibrating operations:
irradiating the detector with and without the mask interposed between the radiation source and the detector, so as to obtain, for each pixel, a masked energy spectrum and a full-flux energy spectrum, respectively;
taking into account a parametric function in order to determine terms of the correction matrix, the parametric function depending on the parameters; and
taking into account the masked energy spectrum and the full-flux energy spectrum to determine the parameters of the parametric function, so as to determine the terms of the correction matrix;
wherein the correction matrix is triangular.