Title :
Large area APDs and monolithic APD arrays
Author :
Shah, K.S. ; Farrell, R. ; Grazioso, R. ; Cirignano, L.
Author_Institution :
RMD Inc., Watertown, MA, USA
Abstract :
In this paper, development of large area planar APDs and monolithic APD arrays for scintillation detection is discussed. Single APDs with area as large as 10 cm2 have been fabricated and tested with CsI(Tl) scintillator (3.8 cm diameter, 2.5 cm high). The resolution of the 662 keV photopeak has been measured to be 9% (FWHM). Multi-element APD arrays have also been fabricated in various formats such as 4×4 to 14×14 elements (2 mm pixels) and their gain, noise and dark current performance has been characterized. Scintillation and timing studies have also been performed by coupling these arrays to LSO and CsI(Tl) scintillators. Packaging, and electronic readout issues related to these APD devices are discussed
Keywords :
avalanche photodiodes; electron device noise; solid scintillation detectors; 662 keV; CsI(Tl) scintillator; CsI:Tl; Lu2SiO4O:Ce; dark current; electronic readout; energy resolution; gain; large area planar avalanche photodiode; monolithic avalanche photodiode; noise; timing; Avalanche photodiodes; Dark current; Electronics packaging; Performance gain; Solid scintillation detectors; Testing; Timing;
Conference_Titel :
Nuclear Science Symposium Conference Record, 2000 IEEE
Conference_Location :
Lyon
Print_ISBN :
0-7803-6503-8
DOI :
10.1109/NSSMIC.2000.949261
