Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1792542 | Journal of Crystal Growth | 2010 | 7 Pages |
Abstract
LuAG:Ce single crystals with various activator concentrations were grown by the vertical Bridgman technique. Characterization of crystals was done in terms of actual doping level, macroscopic defects and degree of non-equivalent substitutions by Lu for Al in octahedral lattice sites. Scintillation measurements were performed using 2×2×8 mm3 shaped samples with Ce concentration in the range 0.05–0.55 at%. Essential improvement of performance was demonstrated in samples containing ≥0.2 at% of Ce; the light yield measured in LuAG:Ce (0.55 at%) was about 26000 ph/MeV, or close to that of LSO.
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Authors
A.G. Petrosyan, K.L. Ovanesyan, R.V. Sargsyan, G.O. Shirinyan, D. Abler, E. Auffray, P. Lecoq, C. Dujardin, C. Pedrini,