ABSTRACT
This chapter presents the procedures of signal acquisition and image reconstruction for three-dimensional (3D) photoacoustic tomography with integrating area and line detectors, and explains the mathematical background of the forward and inverse problems. It outlines the performance of a photoacoustic tomography device based on the Mach-Zehnder interferometer. The chapter details the practical implementation of a tomography device based on line detectors, and provides an overview of possible sensor principles. It explains a description of signal acquisition procedures, linking practical considerations and limitations with the theoretical methods. The chapter describes application of reconstruction algorithms to real experimental signals is demonstrated, both for the two-dimensional (2D) reconstruction of single projections and for the 3D reconstruction that additionally includes the inverse Radon transform. It also presents examples of temporal signals obtained with line detectors and two- and three-dimensional images of phantoms. Any real integrating detector has a finite size.
