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A new method to characterize low stopping power and ultra-fast scintillators using pulsed X-rays
/ Pagano, Fiammetta (CERN ; Milan Bicocca U.) ; Kratochwil, Nicolaus (CERN ; Vienna U.) ; Frank, Isabel (CERN ; Munich U.) ; Gundacker, Stefan (CERN) ; Paganoni, Marco (CERN ; Milan Bicocca U.) ; Pizzichemi, Marco (CERN ; Milan Bicocca U.) ; Salomoni, Matteo (CERN) ; Auffray, Etiennette (CERN)
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 confinement effects, can feature ultra-fast scintillation kinetics and tunable emission. [...]
2022 - 11 p.
- Published in : Front. Phys. 10 (2022) 1021787
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Characterization of mixed Bi$_4$(Ge$_x$Si$_{1-x}$)$_3$O$_{12}$ for crystal calorimetry at future colliders
/ Cala', R (CERN ; INFN, Milan Bicocca ; Milan Bicocca U.) ; Kratochwil, N (CERN ; U. Vienna (main)) ; Martinazzoli, L (CERN ; INFN, Milan Bicocca ; Milan Bicocca U.) ; Lucchini, M T (INFN, Milan Bicocca ; Milan Bicocca U.) ; Gundacker, S (RWTH Aachen U.) ; Galenin, E (Inst. Scintill. Mat., Kharkiv) ; Gerasymov, I (Inst. Scintill. Mat., Kharkiv ; Kazimierz Wielki U., Bydgoszcz) ; Sidletskiy, O (Inst. Scintill. Mat., Kharkiv ; Kazimierz Wielki U., Bydgoszcz) ; Nikl, M (Prague, Inst. Phys.) ; Auffray, E (CERN)
Bismuth germanate (BGO) is a well known high density scintillating material widely used in many applications such as high energy physics and medical imaging. Bismuth silicate (BSO) features properties similar to BGO in terms of stopping power and Cherenkov photon yield with a lower scintillation light output but faster decay time, thus being more attractive for applications in high-rate environments. [...]
2022 - 8 p.
- Published in : Nucl. Instrum. Methods Phys. Res., A 1032 (2022) 166527
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Investigation of Nanocomposite Scintillators and New Detector Concepts for High Energy Physics
/ Frank, I (CERN ; Munich U.) ; Cala, R (CERN ; Milan Bicocca U.) ; Kratochwil, N (CERN) ; Martinazzoli, L (CERN ; Milan Bicocca U.) ; Pagano, F (CERN ; Milan Bicocca U.) ; Arora, D (CERN) ; Pizzichemi, M (Milan Bicocca U.) ; Salomoni, M (CERN) ; Doser, M (CERN) ; Hillemanns, E Auffray (CERN)
Particle physics experiments running at future accelerator facilities will rely on fast timing detectors to cope with high event pileup and to enhance particle identification capabilities. Direct band gap engineered semiconductor nanostructures show a high potential for emission of prompt photons due to quantum confinement, standing out in fast timing and high light yield with potential low cost production, thus triggering interest in the high energy physics community. [...]
2023 - 1 p.
- Published in : 10.1109/NSSMICRTSD49126.2023.10337902
In : 2023 IEEE Nuclear Science Symposium (NSS), Medical Imaging Conference (MIC) and Room Temperature Semiconductor Detector (RTSD) Conference (2023 IEEE NSS MIC RTSD), Vancouver, Canada, 4 - 11 Nov 2023
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Timing performance of lead halide perovskite nanoscintillators embedded in a polystyrene matrix
/ Děcká, Kateřina (Prague, Tech. U. ; Prague, Inst. Phys.) ; Pagano, Fiammetta (CERN ; Milan Bicocca U.) ; Frank, Isabel (CERN ; LMU Munich (main)) ; Kratochwil, Nicolaus (CERN) ; Mihóková, Eva (Prague, Tech. U. ; Prague, Inst. Phys.) ; Auffray, Etiennette (CERN) ; Čuba, Václav (Prague, Tech. U.)
Nanomaterials like CsPbBr$_3$, benefiting from quantum confinement effects to feature ultra-fast decay time and tunable emission, are paving the way for the next generation of fast timing detectors. However, an ongoing challenge is to exploit their favorable properties in a full detector, given their size and instability. [...]
2022 - 8 p.
- Published in : J. Mater. Chem. 10 (2022) 12836-12843
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Time Resolution Studies of Thallium Based Cherenkov Semiconductors
/ Terragni, Giulia (CERN ; Milan Bicocca U.) ; Pizzichemi, Marco (CERN ; Milan Bicocca U.) ; Roncali, Emilie (UC, Davis (main)) ; Cherry, Simon R (UC, Davis (main)) ; Glodo, Jaroslaw (Radiation Monitoring Devices, Inc., Watertown) ; Shah, Kanai (Radiation Monitoring Devices, Inc., Watertown) ; Ariño-Estrada, Gerard (UC, Davis (main)) ; Auffray, Etiennette (CERN) ; Ghezzi, Alessio (Milan Bicocca U.) ; Kratochwil, Nicolaus (CERN ; Vienna U.)
In the context of improving the detector performance of time-of-flight positron emission
tomography (TOF-PET), the combination of charge induction readout and prompt
Cherenkov photon production in semiconductor materials can lead to an outstanding
detector performance in energy, timing, and spatial resolution. Energy resolutions as good
as 1.2% at 662 keV and 5% at 122 keV are reported for pixel thallium bromide (TlBr)
detectors. [...]
2022 - 10 p.
- Published in : Front. Phys. 10 (2022) 785627
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Machine learning-based events classification in heterostructured scintillators
/ Lowis, C (CERN ; RWTH Aachen U.) ; Pagano, F (CERN ; Milan Bicocca U.) ; Kratochwil, N (CERN) ; Pizzichemi, M (Milan Bicocca U.) ; Langen, K J (RWTH Aachen U.) ; Ziemons, K (Applied Sci. U., Aachen) ; Hillemanns, E Auffray (CERN)
Time-of-flight positron emission tomography (TOF PET) faces the challenge of improving time resolution while maintaining high detector efficiency. Heterostructured scintillators, which consist of multiple layers of different scintillating materials with complementary properties, have emerged as a promising solution. [...]
2023 - 1 p.
- Published in : 10.1109/NSSMICRTSD49126.2023.10338326
In : 2023 IEEE Nuclear Science Symposium (NSS), Medical Imaging Conference (MIC) and Room Temperature Semiconductor Detector (RTSD) Conference (2023 IEEE NSS MIC RTSD), Vancouver, Canada, 4 - 11 Nov 2023
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A Fast Timing Layer Concept for a Compton-TOF-PET Module
/ Cala’, Roberto (CERN ; Milan Bicocca U.) ; Kratochwil, Nicolaus (CERN ; U. Vienna (main)) ; Gundacker, Stefan (RWTH Aachen U.) ; Polesel, Andrea (CERN ; Milan Bicocca U.) ; Paganoni, Marco (Milan Bicocca U.) ; Auffray, Etiennette (CERN) ; Pizzichemi, Marco (CERN)
The possibility to improve depth of interaction (DOI) resolution and coincidence time resolution (CTR) of a pixellated PET module by enabling light re-circulation inside it with a light guide is well known. Typically the light guide consists of a non-scintillating material of about 1 mm thickness. [...]
2021 - 5 p.
- Published in : 10.1109/NSS/MIC44867.2021.9875612
In : IEEE NSS MIC 2021, Online, Japan, 16 - 23 Oct 2021, pp.1-5
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Optimization of LYSO crystals and SiPM parameters for the CMS MIP timing detector
/ Addesa, F. (Princeton U.) ; Anderson, T. (Virginia U.) ; Barria, P. (INFN, Rome ; Rome U.) ; Basile, C. (INFN, Rome ; Rome U. ; U. Rome La Sapienza (main)) ; Benaglia, A. (INFN, Milan Bicocca) ; Bertoni, R. (INFN, Milan Bicocca) ; Bethani, A. (Maryland U.) ; Bianco, R. (INFN, Rome ; Rome U. ; CERN) ; Bornheim, A. (Caltech) ; Boldrini, G. (INFN, Milan Bicocca ; Milan Bicocca U.) et al.
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 measurement of the time of arrival of charged particles with a precision of 30 ps at the beginning of HL-LHC, progressively degrading to 60 ps while operating in an extremely harsh radiation environment for over a decade. [...]
arXiv:2410.08738.-
2024-12-17 - 21 p.
- Published in : JINST 19 (2024) P12020
Fulltext: 2410.08738 - PDF; document - PDF;
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Advancements in TOF-PET using DOI Capable Modules and Low-Noise High-Frequency Readout
/ Terragni, G (CERN ; Vienna U.) ; Kratochwil, N (CERN) ; Lowis, C (CERN ; RWTH Aachen U.) ; Pagano, F (CERN ; INFN, Milan Bicocca) ; Cates, J W (LBNL, Berkeley) ; Pizzichemi, M (CERN ; INFN, Milan Bicocca) ; Marton, J (Vienna U.) ; Auffray Hillemanns, E (CERN)
Achieving good time resolution has become a prerequisite in positron emission tomography (PET) to improve the signal-to-noise ratio and thus the quality of the reconstructed image. A particularly attractive solution for the electronic readout is using low-noise high-frequency circuits (HF), which have demonstrated excellent timing performance in time-of-flight (TOF)-PET applications. [...]
2023 - 1 p.
- Published in : 10.1109/NSSMICRTSD49126.2023.10338675
In : 2023 IEEE Nuclear Science Symposium (NSS), Medical Imaging Conference (MIC) and Room Temperature Semiconductor Detector (RTSD) Conference (2023 IEEE NSS MIC RTSD), Vancouver, Canada, 4 - 11 Nov 2023
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