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Image taken at the calcium LII,III edge of the cubic C3A sample: (a) deneral overview of the particles; (b) detail of area 1 underlined in (a); (c) detail of area 2 underlined in (a); and (d) NEXAFS spectra at the Ca LII,III edge for line scans 3–5. The table shows the peak positions in the Ca LII-II edge of the NEXAFS spectra shown in (d).
