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Figure 2
Examples of measured spectra at (a)–(c) Δθ = 0 µrad, (d)–(f) 13 µrad and (g)–(i) 17 µrad. The top row (a), (d) and (g) shows spatial profiles at the 2D detector where the horizontal axis corresponds to the dispersion direction. Scale bar denotes 20 eV. The middle row (b), (e) and (h) presents line profiles averaged over the dashed rectangular areas in the top row. The bottom row (c), (f) and (i) is their magnified spectra. Filled plots are measured with the MCA and black plots represent the reference spectra. |