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arXiv · 2004.09268

Visualization of radiotracers for SPECT imaging using a Timepix detector with a coded aperture

V. Rozhkov·G. Chelkov·I. Hernández·O. Ivanov·D. Kozhevniko·A. Leyva·A. Perera·D. Rastorguev·P. Smolyanskiy·L. Torres·A. Zhemchugov
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Abstract

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.

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V. Rozhkov, G. Chelkov, I. Hernández, O. Ivanov, D. Kozhevniko, A. Leyva, A. Perera, D. Rastorguev, P. Smolyanskiy, L. Torres, A. Zhemchugov. 2020-04-20. Visualization of radiotracers for SPECT imaging using a Timepix detector with a coded aperture. https://doi.org/10.1088/1748-0221/15/06/p06028

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