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3D model of EUCLID, adjustable rod positioned at 0mm (a) and 15mm (b). Simulation of output radiance profiles (c), the cross section (d) and heatmaps (e) of intensity images of the sample acquired from the setup given in S1 Fig for different rod positions. Rod positioned at 0mm corresponds to nominally flat base surface of the cone. The scale bar is 500μm.
