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Figure 6
CCD pictures of interference fringe patterns of the BBB with (a) no lucite wedge, (b) a 2.6° lucite wedge inserted behind the splitter, with its thickness gradient in the horizontal plane, (c) a 5° lucite wedge inserted in the same way as the wedge in (b), and (d) the same wedge as in (b) but with a lead foil placed over the back mirror. The integration times for (a)–(c) were 31 s; that for (d) was 21 s. The full 2 mm × 2 mm beam interference pattern is shown here.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 11| Part 5| August 2004| Pages 378-385
doi:10.1107/S0909049504015468
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