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1 Bio-Algorithms and Med-Systems

1 2025

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Resistive Plate Chambers for brain PET imaging and particle tracking and timing (TOF-tracker)

da Fonte Ribeiro Paulo Jorge, Lopes Luís Alberto Vieira, Costa Clemêncio Filomena Maria, Couceiro de Sousa Jorge Miguel Tavares, Gaspar do Fetal Susete Teresa, Loureiro Custódio F. M., Michel Jan, Saraiva João Pedro, Traxler Michael, Abrunhosa Antero, Blanco Alberto, Castelo-Branco Miguel

Bio-Algorithms and Med-Systems

2025

Vol. 21, no 1

1--6

Objective: To explore readout architectures for the simultaneous high-resolution timing and bidimensional tracking of charged particles with Resistive Plate Chambers (TOF-tracker) and for the accurate detection of gamma rays for Positron Emission Tomography (PET). Materials and methods: Resistive plate chambers and their corresponding readout systems under evaluation were exposed to cosmic rays and β+ sources. Results: Over an active area of 625 cm2, we obtained a time resolution of 61 ps ơ and bidimensional position resolution below 150 μm ơ for the tracking and timing of charged particles from cosmic rays. The intrinsic precision for localising a small β+ source via the detection of its annihilation radiation was determined to be 0.49 mm FWHM. Conclusions: The proposed device exhibits excellent timing and position resolution for the tracking and timing of charged particles, with potential applications in nuclear and high-energy particle physics, as well as gamma imaging with applications in PET.