Scintillation properties and timing performance of state-of-the-art Gd$_{3}$Al$_{2}$Ga$_{3}$O$_{12}$single crystals

Future colliders will set stringent requirements on the performance of detector materials in terms of timing and radiation hardness. Scintillating garnet crystals proved to satisfy the latter, while the former can be improved through technological developments. In this work, optical and scintillatio...

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Detalles Bibliográficos
Autores principales: Martinazzoli, Loris, Kratochwil, Nicolaus, Gundacker, Stefan, Auffray, Etiennette
Lenguaje:eng
Publicado: 2021
Materias:
Particle Physics - Experiment
Acceso en línea:https://dx.doi.org/10.1016/j.nima.2021.165231
http://cds.cern.ch/record/2761063
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author Martinazzoli, Loris
Kratochwil, Nicolaus
Gundacker, Stefan
Auffray, Etiennette
author_facet Martinazzoli, Loris
Kratochwil, Nicolaus
Gundacker, Stefan
Auffray, Etiennette
author_sort Martinazzoli, Loris
collection CERN
description Future colliders will set stringent requirements on the performance of detector materials in terms of timing and radiation hardness. Scintillating garnet crystals proved to satisfy the latter, while the former can be improved through technological developments. In this work, optical and scintillation properties of Cerium-doped Gd$_{3}$Al$_{2}$Ga$_{3}$O$_{12}$ (GAGG:Ce) single crystals were studied upon gamma radiation excitation. Several 2x2x3 mm 3 and 2x2x10 mm$^{3}$ samples from various producers were characterized in terms of light output, transmission, scintillation kinetics and coincidence time resolution (CTR). Light output was measured using a$^{137}$Cs radioactive source, ranging between 27900 and 49500 photons per MeV. Scintillation emission time profiles were measured with 511 keV gamma excitation, and the fastest samples displayed components below 70 ps rise time and 50 ns decay time. CTR was measured employing silicon photomultipliers (SiPMs) obtaining a best value of 87  ±  2 ps full width at half maximum, significantly improving on past state-of-the-art GAGG.
id oai-inspirehep.net-1854433
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2021
record_format invenio
spelling oai-inspirehep.net-18544332021-04-12T12:30:41Zdoi:10.1016/j.nima.2021.165231http://cds.cern.ch/record/2761063engMartinazzoli, LorisKratochwil, NicolausGundacker, StefanAuffray, EtiennetteScintillation properties and timing performance of state-of-the-art Gd$_{3}$Al$_{2}$Ga$_{3}$O$_{12}$single crystalsParticle Physics - ExperimentFuture colliders will set stringent requirements on the performance of detector materials in terms of timing and radiation hardness. Scintillating garnet crystals proved to satisfy the latter, while the former can be improved through technological developments. In this work, optical and scintillation properties of Cerium-doped Gd$_{3}$Al$_{2}$Ga$_{3}$O$_{12}$ (GAGG:Ce) single crystals were studied upon gamma radiation excitation. Several 2x2x3 mm 3 and 2x2x10 mm$^{3}$ samples from various producers were characterized in terms of light output, transmission, scintillation kinetics and coincidence time resolution (CTR). Light output was measured using a$^{137}$Cs radioactive source, ranging between 27900 and 49500 photons per MeV. Scintillation emission time profiles were measured with 511 keV gamma excitation, and the fastest samples displayed components below 70 ps rise time and 50 ns decay time. CTR was measured employing silicon photomultipliers (SiPMs) obtaining a best value of 87  ±  2 ps full width at half maximum, significantly improving on past state-of-the-art GAGG.oai:inspirehep.net:18544332021
spellingShingle Particle Physics - Experiment
Martinazzoli, Loris
Kratochwil, Nicolaus
Gundacker, Stefan
Auffray, Etiennette
Scintillation properties and timing performance of state-of-the-art Gd$_{3}$Al$_{2}$Ga$_{3}$O$_{12}$single crystals
title Scintillation properties and timing performance of state-of-the-art Gd$_{3}$Al$_{2}$Ga$_{3}$O$_{12}$single crystals
title_full Scintillation properties and timing performance of state-of-the-art Gd$_{3}$Al$_{2}$Ga$_{3}$O$_{12}$single crystals
title_fullStr Scintillation properties and timing performance of state-of-the-art Gd$_{3}$Al$_{2}$Ga$_{3}$O$_{12}$single crystals
title_full_unstemmed Scintillation properties and timing performance of state-of-the-art Gd$_{3}$Al$_{2}$Ga$_{3}$O$_{12}$single crystals
title_short Scintillation properties and timing performance of state-of-the-art Gd$_{3}$Al$_{2}$Ga$_{3}$O$_{12}$single crystals
title_sort scintillation properties and timing performance of state-of-the-art gd$_{3}$al$_{2}$ga$_{3}$o$_{12}$single crystals
topic Particle Physics - Experiment
url https://dx.doi.org/10.1016/j.nima.2021.165231
http://cds.cern.ch/record/2761063
work_keys_str_mv AT martinazzoliloris scintillationpropertiesandtimingperformanceofstateoftheartgd3al2ga3o12singlecrystals
AT kratochwilnicolaus scintillationpropertiesandtimingperformanceofstateoftheartgd3al2ga3o12singlecrystals
AT gundackerstefan scintillationpropertiesandtimingperformanceofstateoftheartgd3al2ga3o12singlecrystals
AT auffrayetiennette scintillationpropertiesandtimingperformanceofstateoftheartgd3al2ga3o12singlecrystals

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