Ring artifacts removal in X-ray-induced acoustic computed tomography

X-ray-induced acoustic computed tomography (XACT) is a hybrid imaging modality for detecting X-ray absorption distribution via ultrasound emission. It facilitates from single projection illumination, thus reducing the radiation exposure and improving speed. Nonuniform detector response caused by interference between multichannel data acquisition ring array transducers amplifier systems yields artifacts in reconstructed XACT images, which compromises image quality. We propose model-based algorithms corrected demonstrate their efficacy on numerical experimental measurements. The reconstructions indicate significantly reduced as compared to conventional counterparts.