EM Reconstruction Algorithm with Resolution Modeling applied to an RPC-PET prototype

Our group is developing a very high resolution positron emission tomography (PET) prototype based on RPCs (resistive plate chambers). In this work, we implemented a method for iterative image reconstruction using the expectation maximization (EM) algorithm, but using a factorization of the system matrix, in order to include resolution modeling. The system matrix is thus the product of a simple geometric matrix and a convolution matrix, modeling...