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Figure 7
Number of counts as a function of the threshold measured from a sample containing iron (Ef = 5.9 keV) when using X-rays of energy E0 = 12 keV. In this case, setting the threshold at E0/2, which is very close to Ef, would give Δ ≃ 10% counts from the fluorescence background. Therefore the threshold should be set at an intermediate level Et between the two energy components with a distance of at least Σ > 3 ENC from both Ef and E0.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 17| Part 5| July 2010| Pages 653-668
doi:10.1107/S0909049510026051
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