Abstract: A device and method for measuring angles of orientation of an x-ray imaging system including an x-ray source, an x-ray detector and a sample holder arranged to receive a sample to be analysed. The method includes: emitting a polychromatic x-ray beam through a reference sample installed on the sample holder in order to form a diffraction pattern on the sensing area of the x-ray detector, generating, with the x-ray detector, an observed image comprising the diffraction pattern, and determining the orientation of the x-ray source and the orientation of the x-ray detector by comparing the observed image with at least one target image comprising a diffraction pattern obtained for the reference sample with preset orientations of the x-ray source and of the x-ray detector.

Abstract: A method for controlling the crystallographic orientation of at least one grain of a turbo engine part. The method includes emitting a beam of electromagnetic radiation through an elementary volume of the part and record diffraction information on the electromagnetic radiation passing through the part. This step is repeated on a given area of the part. The method further includes determining the crystal spatial orientation of each of said elementary volumes and deducing the presence of at least one first crystallographic grain for which the elementary volumes are oriented according to the same crystallographic orientation. The method further includes calculating the angular difference between the crystal spatial orientation of said first grain and a predetermined direction taken from the part and comparing it to a first predetermined threshold value and determining a state of use of the part.

Abstract: A method for controlling the crystallographic orientation of at least one grain of a turbo engine part. The method includes emitting a beam of electromagnetic radiation through an elementary volume of the part and record diffraction information on the electromagnetic radiation passing through the part. This step is repeated on a given area of the part. The method further includes determining the crystal spatial orientation of each of said elementary volumes and deducting the presence of at least one first crystallographic grain for which the elementary volumes are oriented according to the same crystallographic orientation. The method further includes calculating the angular difference between the crystal spatial orientation of said first grain and a predetermined direction taken from the part and comparing it to a first predetermined threshold value and determining a state of use of the part.

Abstract: The method of non-destructive inspection is carried out on an aviation part by a digital imaging system including a source of electromagnetic rays and a detector, and the method includes a prior step of estimating settings for the digital imaging system, which step includes: obtaining a digital model characterizing the digital imaging system and including models characterizing the source and the detector; obtaining a digital model characterizing the aviation part; evaluating a contrast-to-noise ratio for the digital imaging system and the aviation part for a plurality of distinct values of the settings, by making use of the digital models that have been obtained characterizing the digital imaging system and the aviation part; and determining optimum values for the settings that optimize the contrast-to-noise ratio and that are applied to the digital imaging system during a setting up step.

Abstract: The method of non-destructive inspection is carried out on an aviation part by a digital imaging system including a source of electromagnetic rays and a detector, and the method includes a prior step of estimating settings for the digital imaging system, which step includes: obtaining a digital model characterizing the digital imaging system and including models characterizing the source and the detector; obtaining a digital model characterizing the aviation part; evaluating a contrast-to-noise ratio for the digital imaging system and the aviation part for a plurality of distinct values of the settings, by making use of the digital models that have been obtained characterizing the digital imaging system and the aviation part; and determining optimum values for the settings that optimize the contrast-to-noise ratio and that are applied to the digital imaging system during a setting up step.