Light Yield Non-Proportionality and Energy Resolution of Lu1.8Y0.2SiO5:Ce and LaCl3:Ce Scintillation Crystals
The scintillation response of Lu1.8Y0.2SiO5:Ce (LYSO:Ce) and LaCl3:Ce scintillators were compared under g-ray excitation using photomultiplier tube (PMT) readout. For 662 keV g-rays (137Cs source), energy resolution of 4.5±0.2% obtained for LaCl3:Ce coupled to XP5200B PMT is much better than that of 8.2±0.4% for LYSO:Ce. The non-proportionality of the light yield and energy resolution versus g-ray energy were measured and the intrinsic resolution of the crystals was calculated. Special attention was devoted to the correlation between intrinsic resolution and non-proportional response of scintillators.
Xiaoming Sang, Pengcheng Wang, Liqun Ai, Yungang Li and Jinglong Bu
C. Wanarak et al., "Light Yield Non-Proportionality and Energy Resolution of Lu1.8Y0.2SiO5:Ce and LaCl3:Ce Scintillation Crystals", Advanced Materials Research, Vols. 284-286, pp. 2002-2007, 2011