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A study of radiation effects on LuAG:Ce(Pr) co-activated with Ca
/ Petrosyan, A G (Ashtarak, IPR) ; Ovanesyan, K L (Ashtarak, IPR) ; Derdzyan, M V (Ashtarak, IPR) ; Ghambaryan, I (Ashtarak, IPR) ; Patton, G (Lyon, LPCML) ; Moretti, F (Lyon, LPCML) ; Auffray, E (CERN) ; Lecoq, P (CERN) ; Lucchini, M (CERN) ; Pauwels, K (CERN) et al.
Single crystals of LuAG:Ce co-doped with Ca2+ were grown by the vertical Bridgman method and studied for optical properties, γ-irradiation induced absorption, scintillation light yield and decay. It is shown that addition of Ca2+ may efficiently limit the radiation induced absorption associated with presence of trace amounts of Yb. [...]
2015 - 6 p.
- Published in : J. Cryst. Growth 430 (2015) 46-51
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Ultrafast and Radiation-Hard Lead Halide Perovskite Nanocomposite Scintillators
/ Erroi, Andrea (Milan Bicocca U.) ; Mecca, Sara (Milan Bicocca U.) ; Zaffalon, Matteo L (Milan Bicocca U.) ; Frank, Isabel (CERN ; Munich U.) ; Carulli, Francesco (Milan Bicocca U.) ; Cemmi, Alessia (ENEA, Rome) ; Di Sarcina, Ilaria (ENEA, Rome) ; Debellis, Doriana (Italian Inst. Tech., Genoa) ; Rossi, Francesca (Parma, IMSEM) ; Cova, Francesca (Milan Bicocca U.) et al.
The use of scintillators for the detection of ionizing radiation is a critical aspect in many fields, including medicine, nuclear monitoring, and homeland security. Recently, lead halide perovskite nanocrystals (LHP-NCs) have emerged as promising scintillator materials. [...]
2023 - 12 p.
- Published in : ACS Energy Letters 8 (2023) 3883-3894
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Sub-10 ps time tagging of electromagnetic showers with scintillating glasses and SiPMs
/ Lucchini, Marco T. (CERN) ; Benaglia, Andrea (CERN) ; Gundacker, Stefan (CERN) ; Illare, Jack (Unlisted, US, CA) ; Lecoq, Paul (CERN) ; Margaryan, Alfred A. (Unlisted, US, CA) ; Margaryan, Ashot A. (Unlisted, US, CA) ; Pauwels, Kristof (CERN) ; Auffray, Etiennette (CERN)
The high energy physics community has recently identified an $e^+e^-$ Higgs factory as one of the next-generation collider experiments, following the completion of the High Luminosity LHC program at CERN.The moderate radiation levels expected at such colliders compared to hadron colliders, enable the use of less radiation tolerant but cheaper technologies for the construction of the particle detectors. This opportunity has triggered a renewed interest in the development of scintillating glasses for the instrumentation of large detector volumes such as homogeneous calorimeters. [...]
arXiv:2212.03368.-
2023-03-17 - 9 p.
- Published in : Nucl. Instrum. Methods Phys. Res., A 1051 (2023) 168214
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4.
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Progress in fabrication of long transparent YAG:Ce and YAG:Ce,Mg single crystalline fibers for HEP applications
/ Sidletskiy, O (Kharkov, Single Crystals Res. Inst.) ; Lebbou, K (ILM, Lyon) ; Kofanov, D (Kharkov, Single Crystals Res. Inst.) ; Kononets, V (Kharkov, Single Crystals Res. Inst.) ; Gerasymov, Ia (Kharkov, Single Crystals Res. Inst.) ; Bouaita, R (ILM, Lyon) ; Jary, V (Prague, Inst. Phys.) ; Kucerkova, R (Prague, Inst. Phys.) ; Nikl, M (Prague, Inst. Phys.) ; Polesel, A (CERN) et al.
A significant enhancement in the light attenuation length in 22 cm long YAG:Ce and YAG:Ce,Mg fibers grown by the micro-pulling-down method has been reported. This progress has been achieved by the introduction of Al excess into the melt, optimization of thermal conditions of crystallization and post growth annealing. [...]
2019 - 6 p.
- Published in : CrystEngComm 21 (2019) 1728-1733
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5.
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Optical properties and radiation hardness of Pr-doped Sol-Gel silica: influence of fiber drawing process
/ Fasoli, M. (University of Milano-Bicocca) ; Cova, F. (University of Milano-Bicocca) ; Moretti, F. (University of Milano-Bicocca) ; Chiodini, N. (University of Milano-Bicocca) ; Pauwels, K. (University of Milano-Bicocca) ; Auffray-Hillemanns, E. (CERN) ; Toliman Lucchini, M. (CERN) ; Bourret, E. (University of Milano) ; Veronese, I. (University of Milano, INFN Milano) ; d’Ippolito, E. (University of Milano) et al.
The optical emission from the 5d – 4f allowed transition of Pr3+ ions embedded in sol-gel silica is investigated for High Energy Physics applications requiring fast scintillating materials.
A complete and detailed characterization of the optical, scintillation and radiation hardness properties of Pr-doped silica is carried out employing different experimental techniques including steady-state and time-resolved photo-luminescence, radio- and thermo-luminescence, scintillation and optical absorption.
Optical absorption measurements, performed after X-ray irradiation sequences up to 1 kGy, evidence the formation of radiation-induced absorption bands related to point defects acting as color centers. Spontaneous partial recovery of the radiation-induced defects at room temperature, as well as after thermal treatments, is also disclosed.
Particular attention is paid to the comparison between bulk silica, both before and after a melting process, and fibers. [...]
AIDA-2020-PUB-2017-011.-
Geneva : CERN, 2017
- Published in : Journal of Luminescence: 192 (2017) , pp. 661-667
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6.
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Dual Cherenkov and Scintillation Response to High-Energy Electrons of Rare-Earth-Doped Silica Fibers
/ Cova, Francesca (Insubria U., Como ; Milan Bicocca U.) ; Lucchini, Marco T (Princeton U. ; CERN) ; Pauwels, Kristof (Milan Bicocca U. ; CERN) ; Auffray, Etiennette (CERN) ; Chiodini, Norberto (Insubria U., Como ; Milan Bicocca U.) ; Fasoli, Mauro (Insubria U., Como ; Milan Bicocca U.) ; Vedda, Anna (Insubria U., Como ; Milan Bicocca U.)
The investigation of the characteristic luminescent response of Ce-doped silica fibers exposed to electrons in the 20–200-GeV energy range is reported in this work to explore the feasibility of using silica-based fibers for a simultaneous dual-readout approach. The sol-gel method allows the preparation of either doped or undoped fibers with high aspect ratio and high purity, providing good flexibility and spatial resolution for the realization of a dual-readout detector. [...]
10.1103/PhysRevApplied.11.024036.-
2019 - 12 p.
- Published in : Phys. Rev. Applied 11 (2019) 024036
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Radiation hardness of Ce-doped sol-gel silica fibers for high energy physics applications
/ Cova, Francesca ; Moretti, Federico ; Fasoli, Mauro ; Chiodini, Norberto ; Pauwels, Kristof ; Auffray, Etiennette (CERN) ; Lucchini, Marco Toliman ; Baccaro, Stefania ; Cemmi, Alessia ; Bártová, Hana et al.
The results of irradiation tests on Ce-doped sol-gel silica using x- and 𝛾-rays up to 10 kGy are reported in order to investigate the radiation hardness of this material for high-energy physics applications. Sol-gel silica fibers with Ce concentrations of 0.0125 and 0.05 mol. [...]
2018
- Published in : Opt. Lett. 43 (2018) 903
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