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Drastic Scintillation Yield Enhancement of YAG:Ce with Carbon Doping
Author(s) -
Sidletskiy Oleg,
Arhipov Pavlo,
Tkachenko Sergii,
Zelenskaya Olga,
Vasyukov Sergey,
Moretti Federico,
Dujardin Christophe
Publication year - 2018
Publication title -
physica status solidi (a)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.532
H-Index - 104
eISSN - 1862-6319
pISSN - 1862-6300
DOI - 10.1002/pssa.201800122
Subject(s) - scintillation , scintillator , materials science , luminescence , yield (engineering) , doping , annealing (glass) , carbon fibers , czochralski method , optics , optoelectronics , analytical chemistry (journal) , chemistry , detector , physics , chromatography , composite number , metallurgy , composite material
Scintillation performances of carbon‐doped YAG and YAG:Ce crystals obtained by the Czochralski method under novel conditions of Ar+CO reducing atmosphere is compared to their counterparts obtained by conventional technologies. While light yield and energy resolution in YAG crystals grown under different conditions is similar, a fast luminescence decay component of 4–6 ns is observed in YAG:C grown by the new procedure. Optimization of post‐growth thermal annealing procedure of YAG:Ce,C scintillator provides the very high light yield of 28 200 phot MeV −1 , and the energy resolution of 7.8–8.5% at 662 KeV