Print Email Facebook Twitter Effect of Electron Traps on Scintillation of Praseodymium Activated Lu3Al5O12 Title Effect of Electron Traps on Scintillation of Praseodymium Activated Lu3Al5O12 Author Drozdowski, W. Dorenbos, P. Drozdowska, R. Bos, A.J.J. Poolton, N.R.J. Tonelli, M. Alshourbagy, M. Faculty Applied Sciences Department Radiation, Radionuclides and Reactors Date 2009-02-10 Abstract In this paper we present the studies performed on a set of Lu3Al5O12:Pr (LuAG:Pr) crystals with praseodymium concentration between 1.5 and 10%, grown by the micro-pulling-down (muPD) technique. The research comprises the measurements of X-ray excited emission spectra and 137Cs gamma-ray pulse height spectra in a range from 78 to 600 K, and thermoluminescence glow curves. Based on experimental data we discuss the dependence of scintillation properties of Lu3Al5O12:Pr on praseodymium content and temperature. The main attention is focused on a distinct increase of scintillation yield with temperature, which we attribute to existence of shallow electron traps and their temperature-dependent contribution to scintillation of LuAG:Pr. An active role of traps is demonstrated by a novel experiment combining X-ray and laser excitation. Subject LuAG:Prlight yieldscintillation mechanismtrap To reference this document use: http://resolver.tudelft.nl/uuid:a351de07-93fe-45e5-b0b8-346b09febf24 DOI https://doi.org/10.1109/TNS.2008.2011269 Publisher IEEE ISSN 0018-9499 Source IEEE Transactions on Nuclear Science, 56 (1), 2009 Part of collection Institutional Repository Document type journal article Rights (c) 2009 IEEE Files PDF drozdowski2009.pdf 1010.1 KB Close viewer /islandora/object/uuid:a351de07-93fe-45e5-b0b8-346b09febf24/datastream/OBJ/view