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Experiment investigating the feasibility of EMCD detection: (a) electron vortices after passing the sample and the SEA, (b) raw spectrum image of the Fe-L2,3 edge. The centers of the vortices and the total signals are labeled, (c) raw spectra and the respective differences of the vortex centers and (d) raw spectra summing over the total vortex intensities and the respective differences.
