M. Paganoni
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View article: The CMS barrel timing layer: test beam confirmation of module timing performance
The CMS barrel timing layer: test beam confirmation of module timing performance Open
First of its kind, the barrel section of the MIP Timing Detector is a large area timing detector based on LYSO:Ce crystals and SiPMs which are required to operate in an unprecedentedly harsh radiation environment (up to an integrated fluen…
View article: Exploring scintillators and Cherenkov radiators for MIP timing detectors
Exploring scintillators and Cherenkov radiators for MIP timing detectors Open
This article presents the timing performance of materials with fast light emission, tested as Minimum Ionizing Particle detectors using 150 GeV hadron beams in Monte Carlo simulations and at the CERN SPS North Area. Pixels of cross-section…
View article: Reasoning about Substitutability at the Level of JVM Bytecode
Reasoning about Substitutability at the Level of JVM Bytecode Open
Subtyping in object-oriented languages is widely based on Liskov’s substitution principle, which offers static correctness guarantees of type safety while abstracting implementation details. Unfortunately, the type systems of languages lik…
View article: Optimization of LYSO crystals and SiPM parameters for the CMS MIP timing detector
Optimization of LYSO crystals and SiPM parameters for the CMS MIP timing detector Open
For the High-Luminosity (HL-LHC) phase, the upgrade of the Compact Muon Solenoid (CMS) experiment at CERN will include a novel MIP Timing Detector (MTD). The central part of MTD, the barrel timing layer (BTL), is designed to provide a meas…
View article: Exploring Scintillators and Cherenkov Radiators for MIP Timing Detectors
Exploring Scintillators and Cherenkov Radiators for MIP Timing Detectors Open
This article presents the timing performance of materials with fast light emission, tested as Minimum Ionizing Particle detectors using 150 GeV hadron beams in Monte Carlo simulations and at the CERN SPS North Area. Pixels of cross-section…
View article: Optimization of LYSO crystals and SiPM parameters for the CMS MIP timing detector
Optimization of LYSO crystals and SiPM parameters for the CMS MIP timing detector Open
For the High-Luminosity (HL-LHC) phase, the upgrade of the Compact Muon Solenoid (CMS) experiment at CERN will include a novel MIP Timing Detector (MTD). The central part of MTD, the barrel timing layer (BTL), is designed to provide a meas…
View article: Enhancing timing performance of heterostructures with double-sided readout
Enhancing timing performance of heterostructures with double-sided readout Open
Objective. Heterostructured scintillators offer a promising solution to balance the sensitivity and timing in TOF-PET detectors. These scintillators utilize alternating layers of materials with complementary properties to optimize performa…
View article: Modeling Scintillation Kinetics and Coincidence Time Resolution in Heterostructured Scintillators
Modeling Scintillation Kinetics and Coincidence Time Resolution in Heterostructured Scintillators Open
In the search for new materials and technologies to\npush the timing performances of time-of-flight positron emission\ntomography (TOF-PET) detectors, it is important to have a model\ncapable of predicting the coincidence time resolution (…
View article: A new method to characterize low stopping power and ultra-fast scintillators using pulsed X-rays
A new method to characterize low stopping power and ultra-fast scintillators using pulsed X-rays Open
The demand for detectors with a time resolution below 100 ps is at the center of research in different fields, from high energy physics to medical imaging. In recent years, interest has grown in nanomaterials that, benefiting from quantum …
View article: Advances in heterostructured scintillators: toward a new generation of detectors for TOF-PET
Advances in heterostructured scintillators: toward a new generation of detectors for TOF-PET Open
Objective. Time-of-flight-positron emission tomography would highly benefit from a coincidence time resolution (CTR) below 100 ps: improvement in image quality and patient workflow, and reduction of delivered dose are among them. This achi…
View article: CMOS-compatible all-dielectric metalens for improving pixel photodetector arrays
CMOS-compatible all-dielectric metalens for improving pixel photodetector arrays Open
Metasurfaces and, in particular, metalenses have attracted large interest and enabled various applications in the near-infrared and THz regions of the spectrum. However, the metalens design in the visible range stays quite challenging due …
View article: Improving depth-of-interaction resolution in pixellated PET detectors using neural networks
Improving depth-of-interaction resolution in pixellated PET detectors using neural networks Open
Parallax error is a common issue in high-resolution preclinical positron emission tomography (PET) scanners as well as in clinical scanners that have a long axial field of view (FOV), which increases estimation uncertainty of the annihilat…
View article: Experimental time resolution limits of modern SiPMs and TOF-PET detectors exploring different scintillators and Cherenkov emission
Experimental time resolution limits of modern SiPMs and TOF-PET detectors exploring different scintillators and Cherenkov emission Open
Solid state photodetectors like silicon photomultipliers (SiPMs) are playing an important role in several fields of medical imaging, life sciences and high energy physics. They are able to sense optical photons with a single photon detecti…
View article: On light sharing TOF-PET modules with depth of interaction and 157 ps FWHM coincidence time resolution
On light sharing TOF-PET modules with depth of interaction and 157 ps FWHM coincidence time resolution Open
The performance of a light sharing and recirculation mechanism that allows the extraction of depth of interaction (DOI) are investigated in this paper, with a particular focus on timing. In parallel, a method to optimize the coincidence ti…
View article: High-frequency SiPM readout advances measured coincidence time resolution limits in TOF-PET
High-frequency SiPM readout advances measured coincidence time resolution limits in TOF-PET Open
Scintillator based radiation detectors readout by SiPMs successively break records in their reached time resolution. Nevertheless, new challenges in time of flight positron emission tomography (TOF-PET) and high energy physics are setting …
View article: Development and evaluation of a practical method to measure the Depth of Interaction function for a single side readout PET detector
Development and evaluation of a practical method to measure the Depth of Interaction function for a single side readout PET detector Open
In small animal and organ dedicated PET scanners, the knowledge of depth of interaction (DOI) of the gamma ray along the main axis of the scintillator is a fundamental information in order to avoid parallax error and to achieve high perfor…
View article: In-depth study of single photon time resolution for the Philips digital silicon photomultiplier
In-depth study of single photon time resolution for the Philips digital silicon photomultiplier Open
The digital silicon photomultiplier (SiPM) has been commercialised by Philips as an innovative technology compared to analog silicon photomultiplier devices. The Philips digital SiPM, has a pair of time to digital converters (TDCs) connect…
View article: A new method for depth of interaction determination in PET detectors
A new method for depth of interaction determination in PET detectors Open
A new method for obtaining depth of interaction (DOI) information in PET detectors is presented in this study, based on sharing and redirection of scintillation light among multiple detectors, together with attenuation of light over the le…
View article: Performance study of Philips digital silicon photomultiplier coupled to scintillating crystals
Performance study of Philips digital silicon photomultiplier coupled to scintillating crystals Open
Silicon photomultipliers (SiPMs) and scintillators are often arranged in the shape of arrays in Positron Emission Tomography (PET) systems. Digital SiPMs provide signal readout in single photon avalanche diode (SPAD) level. From the photon…
View article: Characterization studies of silicon photomultipliers and crystals matrices for a novel time of flight PET detector
Characterization studies of silicon photomultipliers and crystals matrices for a novel time of flight PET detector Open
his paper describes the characterization of crystal matrices and silicon photomulti-plier arrays for a novel Positron Emission Tomography (PET) detector, namely the external plateof the EndoTOFPET-US system. The EndoTOFPET-US collaboration…