Effect of Ca content on optical, scintillation and thermoluminescence performance of LuAG:Ce ceramic scintillators

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F25%3A00619597" target="_blank" >RIV/68378271:_____/25:00619597 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1016/j.jlumin.2025.121245" target="_blank" >https://doi.org/10.1016/j.jlumin.2025.121245</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jlumin.2025.121245" target="_blank" >10.1016/j.jlumin.2025.121245</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Effect of Ca content on optical, scintillation and thermoluminescence performance of LuAG:Ce ceramic scintillators

Popis výsledku v původním jazyce

Ce doped Lu3Al5O12 (LuAG:Ce) is a scintillator that attracts attention due to its high light yield, fast scintillation response, and excellent radiation resistance. In this study, optical and scintillation performance of Ca2+ co-doped LuAG:Ce ceramics, fabricated by two-step sintering combined with air annealing, was investigated. In addition, thermoluminescence (TSL) of these LuAG:Ce,Ca ceramics was studied. Decrease of TSL glow curve intensity was observed with increasing Ca2+ content. In particular, the TSL signal becomes hard to detect when Ca2+ content is higher than 0.1 at.%. Ca2+ co-doping is also beneficial for suppressing the slow scintillation component. Sample with Ca2+ co-doping level of 0.1 at.% shows an optimized light yield of 11 700 ph/MeV with scintillation decay showing a high fast component/total intensity ratio of 98.3 %, which is the highest value ever reported in the Ca2+ co-doped LuAG:Ce.

Název v anglickém jazyce

Effect of Ca content on optical, scintillation and thermoluminescence performance of LuAG:Ce ceramic scintillators

Popis výsledku anglicky

Ce doped Lu3Al5O12 (LuAG:Ce) is a scintillator that attracts attention due to its high light yield, fast scintillation response, and excellent radiation resistance. In this study, optical and scintillation performance of Ca2+ co-doped LuAG:Ce ceramics, fabricated by two-step sintering combined with air annealing, was investigated. In addition, thermoluminescence (TSL) of these LuAG:Ce,Ca ceramics was studied. Decrease of TSL glow curve intensity was observed with increasing Ca2+ content. In particular, the TSL signal becomes hard to detect when Ca2+ content is higher than 0.1 at.%. Ca2+ co-doping is also beneficial for suppressing the slow scintillation component. Sample with Ca2+ co-doping level of 0.1 at.% shows an optimized light yield of 11 700 ph/MeV with scintillation decay showing a high fast component/total intensity ratio of 98.3 %, which is the highest value ever reported in the Ca2+ co-doped LuAG:Ce.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

Journal of Luminescence

ISSN

0022-2313

e-ISSN

1872-7883

Svazek periodika

282

Číslo periodika v rámci svazku

July

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

8

Strana od-do

121245

Kód UT WoS článku

001475130500001

EID výsledku v databázi Scopus

2-s2.0-105002556115