Utilisation des paramètres de Stokes dans le calcul de l'état de polarisation d'un faisceau de rayons X après diffraction par un cristal mosaïque

The polarization state of an X-ray beam diffracted by a mosaic crystal is determined. The state of the incident beam being described by four Stokes parameters, the matrix method used allows the calculation of the Stokes parameters of a monochromatic X-ray beam and it leads to a general expression of the polarization factor which can be used for any polarization state of the incident beam.