Characterization of new GAGG:Ce scintillators with different Al-to-Ga ratio

Author

Sibczynski, P. ; Iwanowska, J. ; Moszynski, M. ; Swiderski, L. ; Szawlowski, M. ; Kamada, K. ; Yoshikawa, Akira ; Sato, Hikaru

Author_Institution

Nat. Centre for Nucl. Res., Otwock-Swierk, Poland

fYear

2013

fDate

Oct. 27 2013-Nov. 2 2013

Firstpage

1

Lastpage

4

Abstract

In this paper results of gamma spectroscopy with the GAGG: 1%Ce scintillators with different Al-to-Ga ratio are showed. The study covered measurements of emission spectra, light output, energy resolution and non-proportionality for each crystal. It was observed that the light output of the recent set of scintillators was significantly improved in comparison to the previous set and varies from 40000 to 55000 ph/MeV. The best energy resolution of 3.7% at 662 keV was obtained using a Hamamatsu S8664-1010 avalanche photodiode. This result can be compared to scintillators possessing very good energy resolution, like LaCl₃ and CeBr₃.

Keywords

gamma-ray spectroscopy; photodiodes; scintillation counters; GAGG:Ce scintillators; Hamamatsu S8664-1010 avalanche photodiode; emission spectra; energy resolution; gamma spectroscopy; light output; nonproportionality; Crystals; Energy resolution; Gallium; Garnets; PIN photodiodes; Spectroscopy; APD; GAGG:Ce; PMT; PiN diode; avalanche photodiode; emission spectra; energy resolution; gadolinium aluminum gallium garnet; gamma spectroscopy; light output; non-proportionality; photomultiplier;

fLanguage

English

Publisher

ieee

Conference_Titel

Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC), 2013 IEEE

Conference_Location

Seoul

Print_ISBN

978-1-4799-0533-1

Type

conf

DOI

10.1109/NSSMIC.2013.6829422

Filename

6829422