Abstract
This contribution proposes a new temporal PET camera concept yielding a precise spatio-temporal localization of a scintillation event within a monolithic scintillator. This concept is promising for PET imaging. The key idea behind this concept is the ability of the system to accurately localize the region of detected un-scattered photons on the Si-PMT detector plane. Then, by ray tracing, an accurate estimate of the depth and timing of the scintillation event is provided. An estimation of the potential performance of such a system, based on extensive Monte Carlo simulations, is also presented.
Highlights
The use of monolithic scintillator-based detectors is promising for designing time of flight (TOF)
We propose a new concept yielding a precise localization of a scintillation event in space and time with a monolithic scintillator
The proposed system should be much less prone to pile-up than conventional monolithic systems (i.e., γ cameras). This contribution describes a new concept for high spatial and temporal resolution for positron electron tomography (PET) Imaging: the temporal PET camera. This imager is composed of a monolithic plate of fast and high light yield scintillators, such as LaBr3:5%Ce, coupled with a dense array of fast Si-PMT
Summary
The use of monolithic scintillator-based detectors is promising for designing time of flight (TOF). Monolithic scintillators exhibit a number of interesting properties such as excellent energy resolution, high γ photon capture efficiency and relatively simple detector assembly. We propose a new concept yielding a precise localization of a scintillation event in space and time with a monolithic scintillator. This concept will be analyzed here for the case of PET (511 keV γ), but it can be used at other energies as long as the incidence angle of the γ ray can be constrained (Lead collimators for SPECT, Compton camera, calorimeters, ....).
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