The growth of Y2O3, Sc2O3, and Lu2O3 single crystals using the micro-pulling-down method is reported. Crystallinity, optical transmittance, and scintillation characteristics including emission spectra, pulse height spectra, and decay kinetics under α-ray excitation of the grown crystals were studied. The light yields of Y2O3, Sc2O3, and Lu2O3 crystals were estimated from the pulse height spectra excited by 241Am 5.5 MeV α-rays, in about 920±92 ph/5.5 MeVα, 370±37 ph/5.5 MeVα, and 150±15 ph/5.5 MeVα, respectively. The scintillation decay times of Y2O 3, Sc2O3, and Lu2O3 crystals were estimated with following fast/slow parameters 30.1/184, 14.6/51.3, and 16.7 ns, respectively. Furthermore, α-ray imaging was performed using Y2O3 crystal. © 2010 Elsevier B.V.
Fukabori, A., Chani, V., Kamada, K., Yanagida, T., Yokota, Y., Moretti, F., et al. (2011). Growth of Y2O3, Sc2O3 and Lu2O3 crystals by the micro-pulling-down method and their optical and scintillation characteristics. JOURNAL OF CRYSTAL GROWTH, 318(1), 823-827 [10.1016/j.jcrysgro.2010.10.211].
Growth of Y2O3, Sc2O3 and Lu2O3 crystals by the micro-pulling-down method and their optical and scintillation characteristics
MORETTI, FEDERICO;
2011
Abstract
The growth of Y2O3, Sc2O3, and Lu2O3 single crystals using the micro-pulling-down method is reported. Crystallinity, optical transmittance, and scintillation characteristics including emission spectra, pulse height spectra, and decay kinetics under α-ray excitation of the grown crystals were studied. The light yields of Y2O3, Sc2O3, and Lu2O3 crystals were estimated from the pulse height spectra excited by 241Am 5.5 MeV α-rays, in about 920±92 ph/5.5 MeVα, 370±37 ph/5.5 MeVα, and 150±15 ph/5.5 MeVα, respectively. The scintillation decay times of Y2O 3, Sc2O3, and Lu2O3 crystals were estimated with following fast/slow parameters 30.1/184, 14.6/51.3, and 16.7 ns, respectively. Furthermore, α-ray imaging was performed using Y2O3 crystal. © 2010 Elsevier B.V.
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