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Figure 8
The intensity profiles of another shorter relative length capillary (BSG7) tested at the CHESS D line. With slope errors of 0.125 mrad, the calculated maximum gain and FWHM, after 10 µm pinhole convolution (solid line), are 95 and 12.7 µm, respectively (132 and 10 µm before convolution), close to measured values (91 and 11.6 µm) from the scanning of a 10 µm pinhole (dash-dot and dotted lines). Compared with Fig. 6[link], this focused X-ray intensity profile is closer to Gaussian with a higher percentage of X-rays within the central peak. The 125 µm-diameter pedestal in the figure comes from the direct X-rays passing through the capillary tip opening and can be stopped with a beam block (not present for this measurement).

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 13| Part 1| December 2006| Pages 74-84
doi:10.1107/S0909049505038562
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