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Figure 2
(a) The dependence of the fractional error of a measurement on the proportion of the measurement devoted to I0 for a set of different sample OD values. Circles indicate the curve minima. (b) The optimum I0 proportion for a measurement as a function of sample OD and contours for fractional errors of 1, 5 and 10% above the optimum. The black circle corresponds to a statistical optimum of 2.2OD and 24.7% I0 proportion, and the horizontal blue line indicates that an I0 proportion of 40% is a safe choice for a reasonable range of sample OD values.

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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