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Figure 7
Transmission t depending on position in the present prism lens as obtained from the radiograph in Fig. 6(b)[link] and from the scan in Figs. 6(d) and 6(e)[link]. The upper oscillating curve refers to the uniformly etched area in Fig. 6(b)[link], while the centre curve refers to a position almost in contact with the substrate. The solid lines are calculations of the transmission according to (28)[link] using the tabulated attenuation length L and the projected amount of material in the etched zones and the underlying large prism. The dots connected by a line present the efficiency e for the beam refraction to the focus as obtained from the slit scan in Figs. 6(d) and 6(e)[link].

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 13| Part 3| April 2006| Pages 239-252
doi:10.1107/S0909049506004936
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