LuAG:Pr codoped with Ho.sup.3+./sup.: acceleration of Pr.sup.3+./sup. decay by energy transfer

0521774 - FZÚ 2020 RIV CZ eng A - Abstract
Páterek, Juraj - Pejchal, Jan - Nikl, Martin
LuAG:Pr codoped with Ho³⁺: acceleration of Pr³⁺ decay by energy transfer.
10th International Conference on Luminescent Detectors and Transformers of Ionizing Radiation. Book of Abstracts. Praha: Czech Technical University in Prague, 2018. s. 65-65. ISBN 978-80-01-06479-5.
[International Conference on Luminescent Detectors and Transformers of Ionizing Radiation /10./. 09.09.2018-14.09.2018, Praha]
R&D Projects: GA ČR GA16-15569S
EU Projects: European Commission(XE) 644260 - INTELUM
Institutional support: RVO:68378271
Keywords : energy transfer * LuAG scintilator
OECD category: Condensed matter physics (including formerly solid state physics, supercond.)

LuAG activated with Ce3+ or Pr3+ is well-known scintillator with favorable properties like stable crystal growth, good mechanical and chemical stability, high density (6,7g.cm-3) and effective atomic number (63) and absence of thermal quenching to 500 K. Performance of this material is degraded by shallow electron traps, originated in frequently occurring anti-site defects, that cause deceleration of its response and decrease of light yield. In this work we present a method that enables acceleration of scintillator response based on codoping. Such a modification may reduce time needed for signal readout and thus increase rate of detection of scintillator detector. In these manner, we report effect of introducing Ho3+ into LuAG:Pr3+ single crystal grown by micro-pulling down method with the main focus on timing and light output properties.
Permanent Link: http://hdl.handle.net/11104/0306339