The work shows the ability to visualize radiotracers used in SPECT with a system based on a coded aperture mask and a hybrid pixel Timepix detector with the CdTe sensor. Characterization of the system using X-rays and radioactive sources confirms that the spatial resolution of less than 1 mm with a field of view 3 cm x 3 cm can be achieved. The results of a simulation study to determine the expected spatial resolution of the system in the focal plane for the various radionuclides is presented. The possibility of using this system with a thin (1.5 mm) coded aperture mask for reconstructing images of gamma emitters with the energy up to 180 keV is demonstrated.
@article{arxiv.2004.09268,
title = {Visualization of radiotracers for SPECT imaging using a Timepix detector with a coded aperture},
author = {V. Rozhkov and G. Chelkov and I. Hernández and O. Ivanov and D. Kozhevniko and A. Leyva and A. Perera and D. Rastorguev and P. Smolyanskiy and L. Torres and A. Zhemchugov},
journal= {arXiv preprint arXiv:2004.09268},
year = {2020}
}