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Figure 4
The calculated integrated reflectivity (a) and energy bandwidth (c) for a double 3 mm-thick Si (111) reflection as a function of the asymmetry angle, and measured photon flux density (b) and energy bandwidth (d) at the sample position of the LLM (asymmetry angle of 36°) in Rowland circle geometry with an unfocused beam. The apparent irregular behaviour of the photon flux curve is due to the selection of different undulator harmonics.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
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