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CERN Document Server 2,027 のレコードが見つかりました。  1 - 10次最後  レコードへジャンプ： 検索にかかった時間： 0.68 秒 
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Toward a second generation of Metascintillators using the Purcell effect / Lecoq, P (CERN) ; Kaminer, I (Technion) ; Schultzman, A (Technion) ; Schütz, R (Technion) ; Kurman, Y (Technion) ; Lahav, N (Technion) ; Dosovitskiy, G (Technion) ; Bekenstein, Y (Technion) ; Konstantinou, G ; Latella, R et al.
We are developing a new scintillation concept, which will become part of the second generation of metascintillators. The first generation approached 100 ps equivalent coincidence time resolution (CTR) in a PET scanner configuration with LYSO/plastic and LYSO/BaF2designs, and reached 200 ps with much cheaper BGO/plastic and BGO/BaF2heterostructures. [...]
2023 - 1 p. - Published in : 10.1109/NSSMICRTSD49126.2023.10338360
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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Metascintillators: New Results for TOF-PET Applications / Lecoq, P (CERN ; Valencia, Polytechnic U.) ; Konstantinou, G ; Latella, R ; Moliner, L (Valencia, Polytechnic U.) ; Nuyts, J (Leuven U.) ; Zhang, L ; Barrio, J (Valencia, Polytechnic U.) ; Benlloch, J M (Valencia, Polytechnic U.) ; Gonzalez, A J (Valencia, Polytechnic U.)
We report on the progress on a first generation of realistic size metascintillators for time-of-flight PET. These heterostructures combine dense LYSO or BGO plates, interleaved with fast scintillator layers producing a bunch of prompt photons from the energy leakage of the recoil photoelectric electron. [...]
2022 - 7 p. - Published in : IEEE Trans. Rad. Plasma Med. Sci. 6 (2022) 510-516 External link: preprint
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Advances in heterostructured scintillators: toward a new generation of detectors for TOF-PET / Pagano, Fiammetta (CERN ; Milan Bicocca U.) ; Kratochwil, Nicolaus (CERN ; Vienna U.) ; Salomoni, Matteo (CERN) ; Pizzichemi, Marco (CERN ; Milan Bicocca U.) ; Paganoni, Marco (CERN ; Milan Bicocca U.) ; Auffray, Etiennette (CERN)
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. [...]
2022 - 12 p. - Published in : Phys. Med. Biol. 67 (2022) 135010 Fulltext: PDF;
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/ Turtos, R M (CERN ; Milan Bicocca U.) ; Gundacker, S (CERN ; Milan Bicocca U.) ; Auffray, E (CERN ; Milan Bicocca U.) ; Lecoq, P (CERN ; Milan Bicocca U.)
Achieving fast timing in positron emission tomography (PET) at the level of few tens of picoseconds of picoseconds is limited by the photon emission rate of existent materials with standard scintillation mechanisms. This has led to consider quantum confined excitonic sub-1 ns emission in semiconductors as a viable solution to enhance the amount of fast-emitted photons produced per gamma event. [...]
2019 - Published in : Phys. Med. Biol. 64 (2019) 185018 Fulltext: PDF;
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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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Experimental time resolution limits of modern SiPMs and TOF-PET detectors exploring different scintillators and Cherenkov emission / Gundacker, Stefan (Milan Bicocca U. ; CERN) ; Martinez Turtos, Rosana (CERN) ; Kratochwil, Nicolaus (CERN ; Vienna U.) ; Pots, Rosalinde Hendrika (CERN ; RWTH Aachen U.) ; Paganoni, Marco (Milan Bicocca U. ; CERN) ; Lecoq, Paul (CERN) ; Auffray, Etiennette (CERN)
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 detection time precision below 100 ps, making them ideal candidates to read the photons generated by fast scintillators in time of flight positron emission tomography (TOF-PET). [...]
2020 - 20 p. - Published in : Phys. Med. Biol. 65 (2020) 025001 Fulltext: PDF;
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TOF-PET image reconstruction with multiple timing kernels applied on Cherenkov radiation in BGO / Efthimiou, Nikos (Pennsylvania U. ; Hull U.) ; Kratochwil, Nicolaus (Vienna U. ; CERN) ; Gundacker, Stefan (Milan Bicocca U. ; CERN ; RWTH Aachen U.) ; Polesel, Andrea (Milan Bicocca U. ; CERN) ; Salomoni, Matteo (Milan Bicocca U. ; CERN) ; Auffray, Etiennette (CERN) ; Pizzichemi, Marco (Milan Bicocca U. ; CERN)
Today Time-Of-Flight (TOF), in PET scanners, assumes a single, well-defined timing resolution for all events. However, recent BGO-Cherenkov detectors, combining prompt Cherenkov emission and the typical BGO scintillation, can sort events into multiple timing kernels, best described by Gaussian mixture models. [...]
2021 - 9 p. - Published in : IEEE Trans. Rad. Plasma Med. Sci. 5 (2021) 703 Fulltext: PDF;
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SNOWMASS WHITE PAPER - SLHC Endcap 1.4 < y < 4 Hadron Optical Calorimetry Upgrades in CMS with Applications to NLC/T-LEP, Intensity Frontier, and Beyond / Bilki, Burak (Iowa U.) ; Onel, Yasar (Iowa U.) ; Winn, David R. (Fairfield U.) ; Yetkin, Taylan (Iowa U.)
Radiation damage in the plastic scintillator and/or readout WLS fibers in the HE endcap calorimeter 1.4<y<4 in the CMS experiment at LHC and SLHC will require remediation after 2018. [...]
arXiv:1308.5939. - 2013. - 5 p.
PDF on ECONF - Proceedings write-up on ECONF - Full text
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Wavelength shifter strips and G-APD arrays for the read-out of the z-coordinate in axial PET modules / Braem, André (CERN) ; Chesi, Enrico Guido (CERN) ; Joram, C (CERN) ; Rudge, A (CERN) ; Séguinot, Jacques (CERN) ; Weilhammer, P (CERN) ; De Leo, R ; Nappi, E ; Lustermann, W ; Schinzel, D et al.
The measurements presented in this paper are related to the development of a PET camera based on a 3-D axial geometry with excellent 3-D spatial, timing and energy resolution. The detector modules consist of matrices of long axially oriented scintillation crystal bars, which are individually coupled to photodetectors. [...]
2008 - Published in : Nucl. Instrum. Methods Phys. Res., A 586 (2008) 300-308
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Extruded Plastic Scintillator for the MINOS Calorimeters / Pla-Dalmau, A
FERMILAB-CONF-2000-343. - 2001.
Full text from Fermilab
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