화학공학소재연구정보센터
Journal of Crystal Growth, Vol.289, No.1, 172-177, 2006
Shaped crystal growth of Ce3+-doped Lu-2((1-x))Y2xSiO5 oxyortho silicate for scintillator applications by pulling-down technique
The pulling-down technique has been applied to produce Lu2(1-x)Y2xSiO5:Ce3+ (LYSO:Ce) shaped single crystals with diameter control. The yttrium content in the crystal was between 5% and 6% (x between 0.025 and 0.030). Ce concentration was in the range 0.05%-0.10%. The thermal and growth conditions allowing fabrication of transparent cylindrical single crystal were optimised. The crystals have been grown under 1 bar pressure in argon atmosphere using pulling rates from 0.1 to 0.5 mm/min. Complete (100%) discharge of the crucible after the growth process was performed with practically empty container ready for the next growth run. The as-pulled crystals demonstrated scintillation behaviour. (c) 2005 Elsevier B.V. All rights reserved.