Page 906 - Radiation Safety
P. 906
Sealed Source
Sealed Source
• Radionuclide's (sealed source) commonly used in industrial :
Isotope Half-life Typical Activity Gamma constant
(Gyh GBq at 1 m
-1
-1
Ir-192 74 days 3.7 TBq 130
Co-60 5.3 years 1.8 - 3.7 TBq 351
Yb-169 32 days 185 GBq 34
Se-75 120 days 1.48 TBq 56
