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. Author manuscript; available in PMC: 2011 Sep 2.
Published in final edited form as: Rev Sci Instrum. 2006 Jul;77(7):074301–074301-11. doi: 10.1063/1.2219744

FIG. 6.

FIG. 6

Vertical beam profile at the sample position. The profile was taken with a 2-mm-high slit spanning the horizontal width of the beam. The 56.4 mm FWHM is about twice the ideal value of 28.8 mm obtained by convoluting the 19 mm monochromator blade height with the 0.5° mosaic over the 2200 mm monochromator-to-sample distance. Circles represent data collected without devices for conditioning the beam vertically. Triangles represent data collected for the final condition, including the gas-filled flight tube and a 40-mm-high vertical aperture.