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Optical Materials Express

Optical Materials Express

  • Editor: David Hagan
  • Vol. 4, Iss. 6 — Jun. 1, 2014
  • pp: 1207–1212

33000 photons per MeV from mixed (Lu0.75Y0.25)3Al5O12:Pr scintillator crystals

Winicjusz Drozdowski, Kamil Brylew, Andrzej J. Wojtowicz, Jarosław Kisielewski, Marek Świrkowicz, Tadeusz Łukasiewicz, Johan T.M. de Haas, and Pieter Dorenbos  »View Author Affiliations

Optical Materials Express, Vol. 4, Issue 6, pp. 1207-1212 (2014)

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(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 been studied in the recent years, the new mixed LuYAG:Pr crystals display markedly higher light yields, regardless of the value of x. In particular, (Lu0.75Y0.25)3Al5O12:0.2%Pr characterized by a yield of 33000 ph/MeV, an energy resolution of 4.4% (at 662 keV), and a density of 6.2 g/cm3, seems to be an ideal candidate to supercede Lu3Al5O12:0.2%Pr (19000 ph/MeV, 4.6%, 6.7 g/cm3) in various applications. The observed enhancement of light output following the partial substitution of lutetium by yttrium is most probably related to some specific differences in distributions of shallow traps in particular materials.

© 2014 Optical Society of America

OCIS Codes
(160.5690) Materials : Rare-earth-doped materials
(260.2160) Physical optics : Energy transfer
(290.5930) Scattering : Scintillation
(250.0040) Optoelectronics : Detectors

ToC Category:
Rare-Earth-Doped Materials

Original Manuscript: April 4, 2014
Revised Manuscript: May 2, 2014
Manuscript Accepted: May 5, 2014
Published: May 16, 2014

Winicjusz Drozdowski, Kamil Brylew, Andrzej J. Wojtowicz, Jarosław Kisielewski, Marek Świrkowicz, Tadeusz Łukasiewicz, Johan T.M. de Haas, and Pieter Dorenbos, "33000 photons per MeV from mixed (Lu0.75Y0.25)3Al5O12:Pr scintillator crystals," Opt. Mater. Express 4, 1207-1212 (2014)

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  1. M. Nikl, H. Ogino, A. Krasnikov, A. Beitlerova, A. Yoshikawa, and T. Fukuda, “Photo- and radioluminescence of Pr-doped Lu3Al5O12 single crystal,” Phys. Status Solidi A202(1), R4–R6 (2005). [CrossRef]
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  13. W. Drozdowski and K. Brylew, yet unpublished data on radioluminescence of LuYAG:Pr.
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  17. A. J. Wojtowicz, J. Glodo, W. Drozdowski, and K. R. Przegietka, “Electron traps and scintillation mechanism in YAlO3:Ce and LuAlO3:Ce scintillators,” J. Lumin.79(4), 275–291 (1998). [CrossRef]
  18. P. Dorenbos, “Electronic structure and optical properties of the lanthanide activated RE3(Al1-xGax)5O12 (RE = Gd, Y, Lu) garnet compounds,” J. Lumin.134, 310–318 (2013). [CrossRef]

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