Title :
Characterization of 2×2ch MPPC array at a wide temperature range (−20 °C to +22 °C)
Author :
Grodzicka, M. ; Moszynski, M. ; Szczesniak, T. ; Czarnacki, W. ; Szawlowski, M. ; Grodzicki, K. ; Baszak, J.
Author_Institution :
Nat. Centre for Nucl. Res., Swierk-Otwock, Poland
fDate :
Oct. 27 2012-Nov. 3 2012
Abstract :
The aim of this work is to provide the characteristics of MPPC arrays with an active area of 6x6 mm2 in gamma-ray spectrometry with 5x5x5mm3 CsI:TI scintillator at a wide temperature range. The measurements presented in this work covered: characteristics of breakdown voltage, selection of MPPC optimum operating voltage, verification of excess noise factor, measurement of energy resolution and the number of photoelectrons per 1 MeV. All measurements were carried out as a function of temperature and compared with similar results obtained previously with CsI:TI crystal coupled to a Large Area Photodiode (LAAPD).
Keywords :
gamma-ray spectroscopy; photodiodes; solid scintillation detectors; CsI:TI crystal; CsI:TI scintillator; MPPC array; MPPC optimum operating voltage; breakdown voltage; energy resolution; excess noise factor; gamma-ray spectrometry; large area photodiode; operating voltage; photoelectrons; temperature -20 degC to 22 degC; Energy Resolution; Excess noise factor; MPPC; Non-proportionality; Number of photoelectron;
Conference_Titel :
Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC), 2012 IEEE
Conference_Location :
Anaheim, CA
Print_ISBN :
978-1-4673-2028-3
DOI :
10.1109/NSSMIC.2012.6551430
