Scintillation properties of transparent Lu3Al5O12 (LuAG) ceramics doped with different concentrations of Pr3+

Takayuki Yanagida, Akihiro Fukabori, Yutaka Fujimoto, Akio Ikesue, Kei Kamada, Jun Kataoka, Yuui Yokota, Akira Yoshikawa, Valery Chani

    Research output: Contribution to journalArticle

    29 Citations (Scopus)

    Abstract

    Transparent ceramics of Pr-doped (0.2 mol%, 0.6 mol%, 1 mol%, and 2 mol%) Lu3Al5O12 (LuAG) scintillators produced by the sintering method are discussed. These materials were cut to the specimens with physical dimensions of 5 × 5 × 2 mm3. Similar size specimens were also prepared from Czochralski grown Pr:LuAG single crystals to compare scintillation properties. Their transmittance and radio luminescence spectra were evaluated. All specimens were highly transparent in wavelength range above 300 nm, and intense Pr3+ 5d-4f emission was detected around 310 and 370 nm under excitation with X-ray. Under 137Cs γ-ray is irradiation, 2 keV photo-absorption peaks were also clearly observed in each sample. The Pr 0.6 mol% doped LuAG ceramics demonstrated highest light yield achievable among the ceramics, and it was half of that observed in the single crystals. Under pulse X-ray excitation, the decay time constants became faster when Pr concentration increased, and. the fastest decay (∼5.7 ns time constant) was noticed in the 2 mol% doped ceramic. (

    Original languageEnglish
    Pages (from-to)140-143
    Number of pages4
    JournalPhysica Status Solidi (C) Current Topics in Solid State Physics
    Volume8
    Issue number1
    DOIs
    Publication statusPublished - 2011 Jan

    Fingerprint

    scintillation
    ceramics
    time constant
    single crystals
    photoabsorption
    decay
    scintillation counters
    excitation
    transmittance
    rays
    sintering
    x rays
    luminescence
    irradiation
    pulses
    wavelengths

    Keywords

    • Gamma-ray
    • LuAG
    • Pr
    • Scintillator
    • Transparent ceramic

    ASJC Scopus subject areas

    • Condensed Matter Physics

    Cite this

    Scintillation properties of transparent Lu3Al5O12 (LuAG) ceramics doped with different concentrations of Pr3+ . / Yanagida, Takayuki; Fukabori, Akihiro; Fujimoto, Yutaka; Ikesue, Akio; Kamada, Kei; Kataoka, Jun; Yokota, Yuui; Yoshikawa, Akira; Chani, Valery.

    In: Physica Status Solidi (C) Current Topics in Solid State Physics, Vol. 8, No. 1, 01.2011, p. 140-143.

    Research output: Contribution to journalArticle

    Yanagida, Takayuki ; Fukabori, Akihiro ; Fujimoto, Yutaka ; Ikesue, Akio ; Kamada, Kei ; Kataoka, Jun ; Yokota, Yuui ; Yoshikawa, Akira ; Chani, Valery. / Scintillation properties of transparent Lu3Al5O12 (LuAG) ceramics doped with different concentrations of Pr3+ In: Physica Status Solidi (C) Current Topics in Solid State Physics. 2011 ; Vol. 8, No. 1. pp. 140-143.
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