Fig. 2
From: Fast GPU-based Monte Carlo code for SPECT/CT reconstructions generates improved 177Lu images
MC simulation of a gamma camera image of 177Lu line sources revealed similar profiles as the measured line profiles. a The simulated line profiles when using an ARF without scattering kernel, 5 cm from the collimator surface (observe the logarithmic scale). b. c The simulated line profiles when using an ARF with a scattering kernel, 5 and 10 cm, respectively, from the collimator surface