Table 2.

PET scanner characteristics of uMI 780 and uEXPLORER

	uMI 780	uEXPLORER
Crystal material	LYSO	LYSO
Crystal size	2.76 × 2.59 × 18 mm3	2.76 × 2.76 × 18 mm3
Number of detector rings	112	672
Detector	SiPM	SiPM
Axial FOV	300 mm	1940 mm
Sensitivity	16 kcps/MBq	176 kcps/MBq
TOF resolution	450 ps	430 ps
Spatial resolution	2.9 mm@center	2.9 mm@center
Scatter fraction	38%	38%

Data are from the datasheets provided by the manufacturer