Figure 6
Intensities measured at 5.57 keV with a couple of 0.1 mm phase plates in the unrotated linear polarization channel. Configurations I and IV are represented by (red) squares and (blue) circles, respectively. They are scaled so as to represent . The two data sets are shifted by 0.03° for clarity. Phase plate 1 delivers a circular polarization and the abscissa is the θ angle of phase plate 2. Lines are fits with a double convolution of the ideal function (see text). |