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Figure 4
(a) Signal quality curves for 10% higher-order light (absorbed at a 0.6 relative rate) and varying levels of counting statistics are shown as dotted grey-scale contours and minima positions labelled with green circles. The solid green curve shows the trajectory of the minima and the shaded region indicates the sample OD range corresponding to an increase of signal error of up to 10% above the minima. (b) Curves of optimum signal quality corresponding to measurements with higher-order contributions shown in Fig. 3[link](b). The corresponding statistics contours are shown as dotted lines, while the vertical dashed line shows the optimum sample OD of 2.2 for ideal measurement conditions.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 29| Part 4| July 2022| Pages 1054-1064
https://doi.org/10.1107/S1600577522004210
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