Počet záznamů: 1  

Growth and scintillation properties of praseodymium doped (Lu,Gd).sub.3./sub.(Ga,Al).sub.5./sub.O.sub.12./sub. single crystals

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    0470877 - FZÚ 2017 RIV NL eng J - Článek v odborném periodiku
    Kamada, K. - Nikl, Martin - Kurosawa, S. - Shoji, Y. - Pejchal, Jan - Ohashi, Y. - Yokota, Y. - Yoshikawa, A.
    Growth and scintillation properties of praseodymium doped (Lu,Gd)3(Ga,Al)5O12 single crystals.
    Journal of Luminescence. Roč. 169, Jan (2016), s. 811-815. ISSN 0022-2313. E-ISSN 1872-7883.
    [International Conference on Luminescence and Optical Spectroscopy of Condensed Matter /17./. Wroclaw, 13.07.2014-18.07.2014]
    Grant CEP: GA MŠMT(CZ) LH14266
    GRANT EU: European Commission(XE) 316906 - LUMINET
    Institucionální podpora: RVO:68378271
    Klíčová slova: single crystal growth * oxides * scintillators * praseodymium * garnet
    Kód oboru RIV: BM - Fyzika pevných látek a magnetismus
    Impakt faktor: 2.686, rok: 2016

    Pr doped (Lu,Gd)(3)(Ga,Al)(5)O-12 single crystals were grown by the micro-pulling down (mu-PD) method. The crystals were greenish and transparent with 3.0 mm in diameter, 10-30 mm in length. Neither visible inclusions nor cracks were observed. Luminescence and scintillation properties were measured. The substitution at the Al3+ sites by Ga3+ in garnet structure has been studied. The Pr3+ 5d-4f emission is observed within 300-380 nm wavelength superposed with 312 nm emission line of Gd3+. Pr0.2%:Lu2.5Gd1Ga3Al2O12 shows highest emission intensity. The light yield of Pr0.2%:Lu2.5Gd0.5Ga2Al3O12 sample with diameter 3 mm x 1 mm size was around 8000 ph/MeV. Two-exponential approximations of scintillation decay showed 39.6 ns (30.6%) and 151 ns (69.4%) decay times.
    Trvalý link: http://hdl.handle.net/11104/0268394

     
     
Počet záznamů: 1  

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