TABLE 1
Details of System Sensitivity Calibration at Participating Institutions
SCF (s
−1
MBq
−1
)
Institution
Calibration source
Detector 1
Detector 2
A
99m
Tc
86.8
88.1
B
57
Co
88.2
88.7
C
99m
Tc
87.6
84.9
D
99m
Tc
89.9
85.3
E
57
Co
90.1
89.1
F
99m
Tc
87.7
88.2