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Fig. 3 | Advanced Structural and Chemical Imaging

Fig. 3

From: Dynamic scan control in STEM: spiral scans

Fig. 3

Schematic illustration of an Archimedean spiral scan. a Voltages applied to the X and Y scan coils over the time for a single frame. b Probe positions, shaded from dark to light as a function of time. The left part shows an outward scan starting from the center. The right part shows an inward scan ending at the center. c Reconstructed outward and inward G-STEM images acquired with Archimedean spiral scan paths. The black striations (indicated by the arrows) at the edges are due to undersampling

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