0382206 - FZÚ 2013 RIV GB eng J - Journal Article
Chewpraditkul, W. - Sreebunpeng, K. - Nikl, Martin - Mareš, Jiří A. - Nejezchleb, K. - Phunpueok, A. - Wanarak, C.
Comparison of Lu₃Al₅O₁₂:Pr³⁺ and Bi₄Ge₃O₁₂ scintillators for gamma-ray detection.
Radiation Measurements. Roč. 47, č. 1 (2012), s. 1-5. ISSN 1350-4487. E-ISSN 1879-0925
R&D Projects: GA ČR GA202/08/0893
Institutional research plan: CEZ:AV0Z10100521
Keywords : BGO * energy resolution * scintillation detectors * LuAG:P * light yield
Subject RIV: BM - Solid Matter Physics ; Magnetism
Impact factor: 0.861, year: 2012

The scintillation properties of Lu3Al5O12:Pr3þ (LuAG:Pr) single crystal grown by the Czochralski method with praseodymium concentration of 0.19 mol% were investigated. For a comparison, a good quality Bi4Ge3O12 (BGO) single crystal grown by Bridgman method was also studied. The light yield and energy resolution were measured using photomultiplier tube (XP5200B PMT) readout. Moderate light yield of 15,900 photons per MeV was measured for the LuAG:Pr(0.19%) crystal. For 662 keV gamma rays (137Cs source), an energy resolution of 6.5% obtained for LuAG:Pr(0.19%) is much better than that of 9.0% obtained for BGO. The light yield non-proportionality and energy resolution versus energy of gamma rays were measured and the intrinsic resolution of the crystals was determined after correcting the measured energy resolution for PMT statistics.
Permanent Link: http://hdl.handle.net/11104/0212496