Abstract
The Jagiellonian Positron Emission Tomograph (J-PET) is a multipurpose detector being developed to provide an economical alternative of commercially available PETs as well as to perform the tests on the discrete symmetries and entanglement. It is composed of 192 plastic scintillators axially arranged in three cylindrical layers. In the framework of J-PET detector, Time-Over-Threshold (TOT) approach is adopted for the signal readouts in order to utilize the excellent time resolution of the plastic scintillators. In this paper, we present a method elaborated for establishing a relation between TOT and energy loss.
Highlights
Time-Over-Threshold (TOT) technique is attractive due to the reduced cost and complexity in signal readouts involving the multi-channel systems [1]
The Jagiellonian Positron Emission Tomograph (J-PET) is constructed of 192 plastic scintillators attached with photomultipliers at each end [8,9,10,11,12]
Plastic scintillators offer the excellent time resolution which is essential for the time-of-flight (TOF) PET imaging [13] as well to study the decays of positronium atoms [14,15,16]
Summary
Time-Over-Threshold (TOT) technique is attractive due to the reduced cost and complexity in signal readouts involving the multi-channel systems [1] In this approach the pulse width of the analog signal gives the estimate of the amplitude of the signal. Plastic scintillators offer the excellent time resolution which is essential for the time-of-flight (TOF) PET imaging [13] as well to study the decays of positronium atoms [14,15,16]. In this contribution, we investigate the TOT in the context of the J-PET. The approach to establish the relationship between TOT and energy deposition is illustrated in details
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