Počet záznamů: 1  

Subpicosecond luminescence rise time in magnesium codoped GAGG:Ce scintillator

  1. 1.
    0482761 - FZÚ 2018 RIV NL eng J - Článek v odborném periodiku
    Tamulaitis, G. - Vaitkevicius, A. - Nargelas, S. - Augulis, R. - Gulbinas, V. - Boháček, Karel - Nikl, Martin - Borisevich, A. - Fedorov, A. - Korjik, M. - Auffray, E.
    Subpicosecond luminescence rise time in magnesium codoped GAGG:Ce scintillator.
    Nuclear Instruments & Methods in Physics Research Section A. Roč. 870, Oct (2017), s. 25-29. ISSN 0168-9002. E-ISSN 1872-9576
    Grant CEP: GA ČR GA16-15569S
    GRANT EU: European Commission(XE) 654168 - AIDA-2020
    Grant ostatní: COST(XE) TD1401
    Institucionální podpora: RVO:68378271
    Klíčová slova: scintillator * GAGG garnet crystal * luminescence kinetics * radiation detector
    Obor OECD: Condensed matter physics (including formerly solid state physics, supercond.)
    Impakt faktor: 1.336, rok: 2017

    The influence of co-doping of Gd3Al2GA3O12:Ce (GAGG:Ce) scintillator with magnesium on the rise time of luminescence response was studied in two GAGG:Ce crystals grown in nominally identical conditions except of Mg co-doping in one of them. Time-resolved photoluminescence spectroscopy and free carrier absorption techniques were exploited. It is evidenced that the Mg co-doping decreases the rise time down to sub-picosecond domain. Meanwhile, the light yield decreases by ∼20%. Thus, the feasibility of exploitation of the fast rise edge in luminescence response for ultrafast timing in scintillation detectors is demonstrated. The role of Mg impurities in facilitating the excitation transfer to radiative recombination centers is discussed
    Trvalý link: http://hdl.handle.net/11104/0278139

     
     
Počet záznamů: 1  

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