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1.
First investigation of the morphological and luminescence properties of HfO$_2$ nanoparticles synthesized by photochemical synthesis / Villa, Irene (Prague, Inst. Phys.) ; Procházková, Lenka Prouzová (Prague, Inst. Phys. ; Prague, Tech. U.) ; Mihóková, Eva (Prague, Inst. Phys.) ; Babin, Vladimir (Prague, Inst. Phys.) ; Král, Robert (Prague, Inst. Phys.) ; Zemenová, Petra (Prague, Inst. Phys.) ; Falvey, Alexandra (Prague, Inst. Phys.) ; Čuba, Václav (Prague, Tech. U.) ; Salomoni, Matteo (CERN ; Milan Bicocca U.) ; Pagano, Fiammetta (CERN ; Milan Bicocca U.) et al.
For the first time, hafnia (HfO$_2$) nanoparticles have been produced by photochemical synthesis. The photochemical route has been proven to be scalable, affordable, and straightforward to create monoclinic HfO$_2$ nanoparticles with a size of tens of nanometers. [...]
2023 - 10 p. - Published in : CrystEngComm 25 (2023) 4345-4354 Fulltext: PDF;
2.
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
3.
TlCl: Be, I: towards a superior Scintillation and Cherenkov emitter for medical imaging / Kratochwil, N (UC, Davis ; CERN) ; Kaneshige, N (Radiat. Monitor. Devices, Watertown) ; Terragni, G (CERN ; TU Vienna) ; Cala, R (CERN ; Milan Bicocca U.) ; Hillemanns, E Auffray (CERN) ; Pandian, L S (Radiat. Monitor. Devices, Watertown) ; Glodo, J (Radiat. Monitor. Devices, Watertown) ; Roncali, E (UC, Davis) ; Ariño-Estrada, G (UC, Davis)
The material requirements for gamma-ray detectors for medical imaging applications are multi-fold and sensitivity is often overlooked. High effective atomic number (Zeff) Cherenkov radiators have raised the attention in the community due to their potential for harvesting prompt photons.A material with one of the highest Zeffand thus low gamma-ray attenuation length is thallium chloride (TlCl). [...]
2023 - 1 p. - Published in : 10.1109/NSSMICRTSD49126.2023.10338718
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
4.
Compositional engineering of multicomponent garnet scintillators: towards an ultra-accelerated scintillation response / Martinazzoli, Loris (CERN ; Milan Bicocca U. ; INFN, Milan Bicocca) ; Nargelas, Saulius (Vilnius, Inst. Theor. Phys. Astron.) ; Boháček, Pavel (Prague, Inst. Phys.) ; Calá, Roberto (CERN ; Milan Bicocca U. ; INFN, Milan Bicocca) ; Dušek, Michal (Prague, Inst. Phys.) ; Rohlíček, Jan (Prague, Inst. Phys.) ; Tamulaitis, Gintautas (Vilnius, Inst. Theor. Phys. Astron.) ; Auffray, Etiennette (CERN) ; Nikl, Martin (Prague, Inst. Phys.)
Optical, luminescence and scintillation characteristics were studied in garnet-type GAGG single-crystal scintillators grown by the Czochralski method and heavily doped with a cerium activator and a magnesium codopant at different concentrations. Emission quenching due to the formation of closely spaced Ce–Mg pairs accelerating the photoluminescence and scintillation decays down to a few nanoseconds and substantial suppression of slower decay components are observed. [...]
2022 - 11 p. - Published in : Materials Advances 3 (2022) 6842-6852 Fulltext: PDF;
5.
Growth and luminescent properties of new Eu $^{2+}$ doped RbBa$_{2}$I$_{5}$ scintillator / Rebrova, N V (Inst. Scintill. Mat., Kharkiv) ; Grippa, A Yu (Inst. Scintill. Mat., Kharkiv) ; Calà, R (Milan Bicocca U. ; CERN) ; Martinazzoli, L (Milan Bicocca U. ; CERN) ; Auffray, E (CERN) ; Boiaryntseva, I A (Inst. Scintill. Mat., Kharkiv)
A novel crystal scintillator of RbBa$_{2}$I$_{5}$:Eu$^{2+}$ was grown by the Bridgman–Stockbarger method. Its luminescence and scintillation properties were investigated. [...]
2020 - Published in : Nucl. Instrum. Methods Phys. Res., A 978 (2020) 164463

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3 Calà, R
2 Calà, Roberto
2 Calá, Roberto
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