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Optimization of decay kinetics of YAG:Ce single crystal scintillators for S(T)EM electron detectors

SYSNO ASEP	0366953
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Optimization of decay kinetics of YAG:Ce single crystal scintillators for S(T)EM electron detectors
Author(s)	Schauer, Petr (UPT-D)_{RID, SAI, ORCID}
Number of authors	1
Source Title	Nuclear Instruments & Methods in Physics Research Section B. - : Elsevier - ISSN 0168-583X Roč. 269, č. 21 (2011), s. 2572-2577
Number of pages	6 s.
Language	eng - English
Country	NL - Netherlands
Keywords	scintillation detector ; electron microscope ; cathodoluminescence ; YAG:Ce single crystal scintillator ; decay time ; afterglow ; kinetic model ; SEM ; STEM
Subject RIV	JA - Electronics ; Optoelectronics, Electrical Engineering
R&D Projects	GAP102/10/1410 GA ČR - Czech Science Foundation (CSF)
CEZ	AV0Z20650511 - UPT-D (2005-2011)
UT WOS	000296078600016
DOI	10.1016/j.nimb.2011.07.013
Annotation	To enhance the detective quantum efficiency (DQE) of scintillation electron detectors for scanning electron microscopes or scanning transmission electron microscopes (S(T)EM), the cathodoluminescence (CL) decay kinetics of YAG:Ce single crystal scintillators is studied in this paper. Some possibilities for reductions of decay time and afterglow of the mentioned scintillators are presented. The pulse mode utilizing a blanking system and 10 keV electrons for the excitation and a sampling oscilloscope for the CL detection were used for the measurement of decay characteristics. The CL decay characteristics of YAG:Ce single crystals of different Ce concentrations, pulled by the Czochralski method and cleaned and annealed under specific conditions, were measured in dependence on excitation pulse duration and on the specimen temperature. To interpret the presented results, a kinetic model of cathodoluminescence of the YAG:Ce single crystals was created.
Workplace	Institute of Scientific Instruments
Contact	Martina Šillerová, sillerova@ISIBrno.Cz, Tel.: 541 514 178
Year of Publishing	2012

Number of the records: 1