Investigation of the Scanning Angle and the Orientation of the Absorber Effects on the Photoacoustic Tomography Imaging

In this paper, based on circular scanning configuration of photoacoustic tomography (PAT), we have tested the effects of the stepping angle of scanning and the relationship between the scanning range and the orientation of the absorber on the quality of the reconstructed image. The experiment results have shown that the reconstructed image would be influenced more by artifacts as the increase of the stepping angle of scanning, and for the limited-view scanning, while the relationship of the scanning path and the orientation of the absorber is parallel, compared with vertical, we can use the data got from less detecting position to reconstruct image clearly.