Title :
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
fDate :
Oct. 27 2013-Nov. 2 2013
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;
Conference_Titel :
Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC), 2013 IEEE
Conference_Location :
Seoul
Print_ISBN :
978-1-4799-0533-1
DOI :
10.1109/NSSMIC.2013.6829422
