TY - JOUR
T1 - Growth of Y2O3, Sc2O3 and Lu2O3 crystals by the micro-pulling-down method and their optical and scintillation characteristics
AU - Fukabori, Akihiro
AU - Chani, Valery
AU - Kamada, Kei
AU - Yanagida, Takayuki
AU - Yokota, Yuui
AU - Moretti, Federico
AU - Kawaguchi, Noriaki
AU - Yoshikawa, Akira
PY - 2011/3/1
Y1 - 2011/3/1
N2 - 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.
AB - 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.
KW - A1. Radiation
KW - A2. Growth from melt
KW - A3. Single crystal growth
KW - B1. Oxides
KW - B2. Scintillator materials
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UR - http://www.scopus.com/inward/citedby.url?scp=79952738165&partnerID=8YFLogxK
U2 - 10.1016/j.jcrysgro.2010.10.211
DO - 10.1016/j.jcrysgro.2010.10.211
M3 - Article
AN - SCOPUS:79952738165
VL - 318
SP - 823
EP - 827
JO - Journal of Crystal Growth
JF - Journal of Crystal Growth
SN - 0022-0248
IS - 1
ER -