Abstract
Jagiellonian Positron Emission Tomograph (J-PET) has been recently constructed at the Jagiellonian University as a prototype of a cost-effective scanner for the metabolic imaging of the whole human body. J-PET detector is optimized for the measurement of momentum and polarization of photons from the electron-positron annihilations. It is built out of strips of plastic scintillators, forming three cylindrical layers. As detector of gamma quanta it will be used for studies of discrete symmetries and multiparticle entanglement of photons originating from the decays of ortho-positronium atoms.
Highlights
Determination of the angles between ortho-positronium atoms (o-Ps) spin and the scattering planes of photons will e-mail: alexander.khreptak@gmail.com allow for the multi-particle entanglement studies of high energy photons originating from the positronium decay
In this article we briefly describe the concept of the Jagiellonian Positron Emission Tomograph (J-PET) detector and its potential in the studies of the fundamental properties of leptonic systems
First prototype of the multi-purpose J-PET scanner consists of three layers of EJ-230 scintillators strips read-out by Hamamatsu R9800 photomultipliers and forming a cylinder of diameter equal to 85 cm and its active inner part is equal to 50 cm, as one can see in right panel of Fig. 2
Summary
Allow for the multi-particle entanglement studies of high energy photons originating from the positronium decay. In the J-PET detector, axially arranged organic scintillators strips form a barrel. Light signals, generated by gamma quanta interaction with scintillator, are read out by pairs of photomultipliers connected to the opposite ends of each strip. First prototype of the multi-purpose J-PET scanner consists of three layers of EJ-230 scintillators strips read-out by Hamamatsu R9800 photomultipliers and forming a cylinder of diameter equal to 85 cm and its active inner part is equal to 50 cm, as one can see in right panel of Fig. 2. The J-PET detector is optimized for the detection of gamma quanta originating from the electron–positron annihilation, but it can be used for studies of ortho-positronium decays, as well as studies of discrete symmetries, which are briefly described
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