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A low-cost photoacoustic computed tomography (LC-PACT) system diagram comprised of portable EKSPLA laser head, power supply for the laser, chiller, DC supply for the motor driver, NI DAQ, NI trigger, servo motor (expanded), motor gear, 3-axis translation stage for phantom, and 16 sets of transducers and amplifiers. B: imaging of a complex phantom target. (a) Experimental setup. (b) An 8-branch lead phantom with a diameter of 3cm used as target object, and (c) a 2D reconstructed image of the phantom using 16 channels.

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