Comparative study of Tm-doped and Tm-Sc co-doped Lu3Al5O12 scintillator

Makoto Sugiyama; Takayuki Yanagida; Yutaka Fujimoto

doi:10.1016/j.radmeas.2014.05.033

Comparative study of Tm-doped and Tm-Sc co-doped Lu₃Al₅O₁₂ scintillator

Makoto Sugiyama, Takayuki Yanagida, Yutaka Fujimoto

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

The crystals of Tm doped and Tm-Sc co-doped Lu₃Al₅O₁₂ (LuAG) grown by the floating zone (FZ) method were examined for their optical and scintillation properties. In transmittance spectra, strong absorption lines due to Tm³⁺ 4f-4f transitions were observed. X-ray excited radioluminescence spectra were measured and broad and sharp emission peaks were detected. The former one was attributed to Sc³⁺ and the latter one was due to Tm³⁺ 4f-4f transitions. Scintillation yield enhancement due to Sc co-doping was observed by means of ¹³⁷Cs pulse height spectra. Scintillation decay times were several tens of μs under pulse X-ray excitation.

Original language	English
Pages (from-to)	153-157
Number of pages	5
Journal	Radiation Measurements
Volume	71
DOIs	https://doi.org/10.1016/j.radmeas.2014.05.033
Publication status	Published - 2014 Dec
Externally published	Yes

Keywords

Scintillator
Single crystal
Tm 4f-4f emission

ASJC Scopus subject areas

Radiation
Instrumentation

Access to Document

10.1016/j.radmeas.2014.05.033

Cite this

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title = "Comparative study of Tm-doped and Tm-Sc co-doped Lu3Al5O12 scintillator",

abstract = "The crystals of Tm doped and Tm-Sc co-doped Lu3Al5O12 (LuAG) grown by the floating zone (FZ) method were examined for their optical and scintillation properties. In transmittance spectra, strong absorption lines due to Tm3+ 4f-4f transitions were observed. X-ray excited radioluminescence spectra were measured and broad and sharp emission peaks were detected. The former one was attributed to Sc3+ and the latter one was due to Tm3+ 4f-4f transitions. Scintillation yield enhancement due to Sc co-doping was observed by means of 137Cs pulse height spectra. Scintillation decay times were several tens of μs under pulse X-ray excitation.",

keywords = "Scintillator, Single crystal, Tm 4f-4f emission",

author = "Makoto Sugiyama and Takayuki Yanagida and Yutaka Fujimoto",

year = "2014",

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doi = "10.1016/j.radmeas.2014.05.033",

language = "English",

volume = "71",

pages = "153--157",

journal = "Radiation Measurements",

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T1 - Comparative study of Tm-doped and Tm-Sc co-doped Lu3Al5O12 scintillator

AU - Sugiyama, Makoto

AU - Yanagida, Takayuki

AU - Fujimoto, Yutaka

PY - 2014/12

Y1 - 2014/12

N2 - The crystals of Tm doped and Tm-Sc co-doped Lu3Al5O12 (LuAG) grown by the floating zone (FZ) method were examined for their optical and scintillation properties. In transmittance spectra, strong absorption lines due to Tm3+ 4f-4f transitions were observed. X-ray excited radioluminescence spectra were measured and broad and sharp emission peaks were detected. The former one was attributed to Sc3+ and the latter one was due to Tm3+ 4f-4f transitions. Scintillation yield enhancement due to Sc co-doping was observed by means of 137Cs pulse height spectra. Scintillation decay times were several tens of μs under pulse X-ray excitation.

AB - The crystals of Tm doped and Tm-Sc co-doped Lu3Al5O12 (LuAG) grown by the floating zone (FZ) method were examined for their optical and scintillation properties. In transmittance spectra, strong absorption lines due to Tm3+ 4f-4f transitions were observed. X-ray excited radioluminescence spectra were measured and broad and sharp emission peaks were detected. The former one was attributed to Sc3+ and the latter one was due to Tm3+ 4f-4f transitions. Scintillation yield enhancement due to Sc co-doping was observed by means of 137Cs pulse height spectra. Scintillation decay times were several tens of μs under pulse X-ray excitation.

KW - Scintillator

KW - Single crystal

KW - Tm 4f-4f emission

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