TY - JOUR
T1 - Optical and scintillation properties of Ce-doped LuLiF4 with different Ce concentrations
AU - Yanagida, Takayuki
AU - Fujimoto, Yutaka
AU - Fukuda, Kentaro
AU - Chani, Valery
N1 - Funding Information:
This work was mainly supported by the JST Sentan, A-step and partially by a Grant in Aid for Young Scientists (A) - 23686135 , and Challenging Exploratory Research - 23656584 from the Ministry of Education, Culture, Sports, Science and Technology of the Japanese government (MEXT) . Partial assistance from the Yazaki Memorial Foundation for Science and Technology, Shimazu Sci. Foundation, Kato Foundation for Promotion of Science, and Nippon Sheet Glass Foundation for Materials Science and Engineering, Tokuyama Science foundation, Iketani Science and Technology Foundation, and The Asahi Glass Foundation , are also gratefully acknowledged.
PY - 2013
Y1 - 2013
N2 - The crystals of 0.1, 0.5, and 1 mol% Ce-doped LuLiF4 (Ce:LLF) grown by the micro-pulling down (μ-PD) method were examined for their optical and scintillation properties. Ce:LLF crystals had ~80% transparency at wavelengths longer than 300 nm. In photoluminescence spectra, they demonstrated intense emission peaks at 310 and 330 nm with the quantum yield of 60-90%. Ce3+ 5d-4f emission peaks were also detected at similar wavelengths of 310 and 330 nm in the radioluminescence spectra obtained under X-ray excitation. According to pulse height spectra recorded under γ-ray irradiation, the absolute light yield of Ce 0.1, 0.5, and 1% were 3600±400, 3000±300, and 1700±200 ph/MeV, respectively. Decay time kinetics was also inspected using a pulse X-ray equipped streak camera system. The decay time components of Ce:LLF were ∼70 ns and ∼1 μs for all the samples.
AB - The crystals of 0.1, 0.5, and 1 mol% Ce-doped LuLiF4 (Ce:LLF) grown by the micro-pulling down (μ-PD) method were examined for their optical and scintillation properties. Ce:LLF crystals had ~80% transparency at wavelengths longer than 300 nm. In photoluminescence spectra, they demonstrated intense emission peaks at 310 and 330 nm with the quantum yield of 60-90%. Ce3+ 5d-4f emission peaks were also detected at similar wavelengths of 310 and 330 nm in the radioluminescence spectra obtained under X-ray excitation. According to pulse height spectra recorded under γ-ray irradiation, the absolute light yield of Ce 0.1, 0.5, and 1% were 3600±400, 3000±300, and 1700±200 ph/MeV, respectively. Decay time kinetics was also inspected using a pulse X-ray equipped streak camera system. The decay time components of Ce:LLF were ∼70 ns and ∼1 μs for all the samples.
KW - Ce
KW - Gamma-rays
KW - LuLiF
KW - Scintillator
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U2 - 10.1016/j.nima.2013.07.010
DO - 10.1016/j.nima.2013.07.010
M3 - Article
AN - SCOPUS:84880706661
SN - 0168-9002
VL - 729
SP - 58
EP - 63
JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
ER -