EDS and WDS Measurements of Barium (Ba)

EDS and WDS Measurements of Barium (Ba)
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The EDS profile of BaTiO₃ system shown in Figure 3107a presents an example of EDS peak overlap. However, the FWHM of the WDS peaks is only a few eV because the energy resolution of the wavelength spectrometer is 5-10 eV. In this case, peak overlap in WDS is not a problem.

EDS and WDS profiles of BaTiO3

Figure 3107a. EDS and WDS profiles of BaTiO₃. The green spectrum presents a standard EDS of of BaTiO₃, while the red one presents a standard WDS. EDS shows the overlapped Ba L_α-Ti K_α and Ba L_β1-Ti K_β peaks.

Figure 3107b shows a deconvoluted X-ray spectrum taken from a material containing Ba, Ti, Ce, and Fe elements. The different colored peaks represent the contribution of the various elements. The grey area is the background corrected spectrum which is the sum of all the deconvoluted lines.

Deconvoluted X-ray spectrum taken from a material containing Ba, Ti, Ce, and Fe elements

Figure 3107b. Deconvoluted X-ray spectrum taken from a material containing Ba, Ti, Ce, and Fe elements. [1]

[1] T. Salge, R. Neumann, C. Andersson, M. Patzschke, Advanced Mineral Classification Using Feature Analysis and Spectrum Imaging with EDS, 23rd International Mining Congress & Exhibition of Turkey, 16-19 April, 357, 2013.

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