Comparative studies of Lu1.95Y0.05SiO5:Ce and Lu0.7Y0.3AlO3:Ce single crystal scintillators for gamma-ray detection

Autor:	Marek Moszynski, T. Szczesniak, Chalerm Wanarak, W. Chewpraditkul
Rok vydání:	2014
Předmět:	Physics Nuclear and High Energy Physics Scintillation Annihilation Physics::Instrumentation and Detectors Detector Analytical chemistry Photoelectric effect Scintillator Coincidence Lyso Nuclear physics High Energy Physics::Experiment Instrumentation Single crystal
Zdroj:	Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 326:103-105
ISSN:	0168-583X
DOI:	10.1016/j.nimb.2013.08.076
Popis:	The scintillation characteristics of Lu1.95Y0.05SiO5:Ce (LYSO:Ce) and Lu0.7Y0.3AlO3:Ce (LuYAP:Ce) single crystals were compared for γ-ray detection. The values of scintillation decay time and coincidence time resolution were evaluated. The scintillation decay of LYSO:Ce exhibits approximately a single-exponential component with decay time of 39 ns, whereas for LuYAP:Ce an intensity of the fast component with decay time of 21 ns is reduced (∼42%) and followed by a high intensity of slower components. The coincidence time resolution for 511 keV annihilation quanta of 234 and 894 ps was obtained, respectively, for LYSO:Ce and LuYAP:Ce detectors in coincidence experiment using a BaF2-based detector. The time resolution was also discussed in terms of a number of photoelectrons and decay time of the scintillation pulse.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::3349a53f374ee010d6e90f3119c531d2 https://doi.org/10.1016/j.nimb.2013.08.076 Zobrazit plný text záznamu Full Text from ScienceDirect