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Rozhkov, V.; Chelkov, G.; Hernández, I.; Ivanov, O.; Kozhevnikov, D.; Leyva, A.; Perera, A.; Rastorguev, D.; Smolyanskiy, P.; Torres, L.; Zhemchugov, A.
Journal of instrumentation, 06/2020, Letnik: 15, Številka: 6Journal Article
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 × 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 mm) coded aperture mask for reconstructing images of gamma emitters with the energy up to 180 keV is demonstrated.
