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Figure 2
Measured energy-dispersive X-ray fluorescence spectra from different NIST standard reference materials for a spectrum acquisition time of 300 s. Monochromatic X-rays of energy 17.0 keV from a double-crystal monochromator were used as the excitation energy for these NIST standards. (a) Tomato leaves (NIST-1573A), (b) coal fly ash (NIST-1633B). Black solid lines are experimental data, dotted lines are fitted data and the thick grey lines represent an estimation of the spectral background. All the fluorescence measurements were performed in an air environment.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 20| Part 2| February 2013| Pages 386-389
doi:10.1107/S0909049513001337
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