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Photoacoustic tomography of a 49-μm bead. (a) Reconstructed image, (b) measured and simulated acoustic signals at one particular angle, (c) the line profile of the reconstructed image at y = −76 μm, and (d) the line profile of the reconstructed image at x = −9 μm. The center of the bead's image is at about x = 9 μm and y = −76 μm.
