Abstract
Modular J-PET is the new prototype of the Jagiellonian Positron Emission Tomograph. The portability feature due to its modular design makes it a unique tomograph with a larger axial field of view of 50 cm. The complete ring is composed of 24 modules that can be configured as a diagnostic chamber with a diameter of approximately 76 cm or as a detection setup consisting of several modules for experimental studies where multiple photons are generated in a single event. The J-PET collaboration explicitly studies the decays of the positronium atom (Ps), which is a bound state of electron and positron that self-annihilate into multiple photons. The modular J-PET provides a significant phase space covrage for the registration of photons originating from the decays of Ps atoms. In this paper, we discuss the properties of the modular J-PET and its potential applications in medical and particle physics.
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