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Przeglądanie wg autora "Wojtowicz, Andrzej J."

Repozytorium Uniwersytetu Mikołaja Kopernika

Przeglądanie wg autora "Wojtowicz, Andrzej J."

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  • 33000 Photons per MeV from Mixed (Lu0.75Y0.25)3Al5O12:Pr Scintillator Crystals 
    Drozdowski, Winicjusz; Brylew, Kamil; Wojtowicz, Andrzej J.; Kisielewski, Jarosław; Świrkowicz, Marek; Łukasiewicz, Tadeusz; de Haas, Johan T.M.; Dorenbos, Pieter (2014-05-26)
    (LuxY1-x)3Al5O12:Pr (x = 0.25, 0.50, 0.75) crystals have been grown by the Czochralski method and their scintillation properties have been examined. Compared to the well-respected LuAG:Pr scintillator, which has so extensively ...
  • A Deeper Insight into (Lu,Y)AG:Pr Scintillator Crystals 
    Drozdowski, Winicjusz; Wojtowicz, Andrzej J.; Brylew, Kamil; Łachmański, W.; Talik, E.; Szubka, M.; Kusz, J.; Guzik, A.; Balin, K.; Kisielewski, Jarosław; Świrkowicz, Marek; Pajączkowska, A. (IOP Science, 2017-02)
    Interior of Czochralski-grown (Lu,Y)AG:Pr crystals has been examined by means of several techniques, such as X-Ray Photoelectron Spectroscopy, X-Ray Diffraction, Time-of-Flight Secondary Ion Mass Spectrometry, and magnetic ...
  • Charge traps in Ce-doped CaF2 and BaF2 
    Drozdowski, Winicjusz; Przegiętka, Krzysztof; Wojtowicz, Andrzej J.; Oczkowski, Hubert Lucjan (Institute of Physics, Polish Academy of Sciences, 1999)
    Thermoluminescence of CaF2:Ce, BaF2, and BaF2:Ce irradiated at room temperature is reported. X-ray induced emission spectra of the samples show that both excitonic (due to e- + VK recombination) and Ce3+ d-f luminescence ...
  • Procesy rekombinacji promienistej w kryształach BaF2 aktywowanych wybranymi jonami ziem rzadkich 
    Drozdowski, Winicjusz (2014-05-26)
    Obiektem zainteresowania niniejszej pracy są procesy rekombinacji promienistej zachodzące w krysztale fluorku baru aktywowanym trójwartościowymi jonami ceru, prazeodymu, terbu i erbu. Pod pojęciem rekombinacji rozumiemy ...
  • Recent Progress in the Development of β-Ga2O3 Scintillator Crystals Grown by the Czochralski Method 
    Drozdowski, Winicjusz; Makowski, Michał; Witkowski, Marcin E.; Wojtowicz, Andrzej J.; Irmscher, Klaus; Schewski, Robert; Galazka, Zbigniew (The Optical Society., 2021)
    A high-quality bulk single crystal of β-Ga2O3 has been grown by the Czochralski method and its basic scintillation characteristics (light yield, energy resolution, proportionality, and scintillation decay times) have been ...
  • Spectroscopy and Thermoluminescence of LuAlO3:Ce 
    Wiśniewski, Dariusz; Drozdowski, Winicjusz; Wojtowicz, Andrzej J.; Łempicki, Aleksander; Dorenbos, Pieter; de Haas, Johan T.M.; van Eijk, Carel W.E.; Bos, Adrie J.J. (Instytut Fizyki PAN, 1996-08)
    The present status of the LuAlO3:Ce scintillator is reviewed. Scintillation mechanism of this material is based on capture by Ce3+ of holes and then electrons from their respective bands. Results of spectroscopic and ...
  • Tailoring the Scintillation Properties of β-Ga2O3 by Doping with Ce and Codoping with Si 
    Makowski, Michał; Drozdowski, Winicjusz; Witkowski, Marcin E.; Wojtowicz, Andrzej J.; Irmscher, Klaus; Schewski, Robert; Galazka, Zbigniew (2019)
    Measurements of pulse height spectra and scintillation time profiles performed on Czochralski-grown β-Ga2O3, β-Ga2O3:Ce, and β-Ga2O3:Ce,Si crystals are reported. The highest value of scintillation yield, 7040 ph/MeV, was ...