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

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081731%3A_____%2F11%3A00366953" target="_blank" >RIV/68081731:_____/11:00366953 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.nimb.2011.07.013" target="_blank" >http://dx.doi.org/10.1016/j.nimb.2011.07.013</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.nimb.2011.07.013" target="_blank" >10.1016/j.nimb.2011.07.013</a>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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 forthe 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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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 forthe 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.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JA - Elektronika a optoelektronika, elektrotechnika

OECD FORD obor

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Projekt

<a href="/cs/project/GAP102%2F10%2F1410" target="_blank" >GAP102/10/1410: Studium vlivu magnetického a elektrostatického pole na zesílení signálu sekundárních elektronů detekovaných novým detektorem pro VP-SEM.</a><br>

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2011

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Nuclear Instruments & Methods in Physics Research Section B

ISSN

0168-583X

e-ISSN

—

Svazek periodika

269

Číslo periodika v rámci svazku

21

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

6

Strana od-do

2572-2577

Kód UT WoS článku

000296078600016

EID výsledku v databázi Scopus

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