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Figure 2
Effective transmission function versus time for three different cases: sample size larger than slot opening (parallel geometry only) (left); sample equal to the slot opening (middle); sample size smaller than slot opening (right). If an auxiliary slit smaller than the sample is used, the slit size replaces the sample size in determining the profile of the secondary beam. In the perpendicular geometry the central figure applies even for large sample sizes. A parallel beam is assumed. The two figures on the left are as discussed earlier in terms of slit size for the perpendicular geometry (Mills, 1989BB12).

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 14| Part 1| December 2007| Pages 133-137
doi:10.1107/S0909049506041835
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