Subpicosecond luminescence rise time in magnesium codoped GAGG:Ce scintillator

12Citations
Citations of this article
22Readers
Mendeley users who have this article in their library.

Abstract

The influence of co-doping of Gd 3 Al 2 GA 3 O 12 :Ce (GAGG:Ce) scintillator with magnesium on the rise time of luminescence response was studied in two GAGG:Ce crystals grown in nominally identical conditions except of Mg co-doping in one of them. Time-resolved photoluminescence spectroscopy and free carrier absorption techniques were exploited. It is evidenced that the Mg co-doping decreases the rise time down to sub-picosecond domain. Meanwhile, the light yield decreases by ∼20%. Thus, the feasibility of exploitation of the fast rise edge in luminescence response for ultrafast timing in scintillation detectors is demonstrated. The role of Mg impurities in facilitating the excitation transfer to radiative recombination centers is discussed.

Cite

CITATION STYLE

APA

Tamulaitis, G., Vaitkevičius, A., Nargelas, S., Augulis, R., Gulbinas, V., Bohacek, P., … Auffray, E. (2017). Subpicosecond luminescence rise time in magnesium codoped GAGG:Ce scintillator. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 870, 25–29. https://doi.org/10.1016/j.nima.2017.07.015

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Save time finding and organizing research with Mendeley

Sign up for free