Test sources, such as those used for school experiments, have an activity of <100 kBq . Devices for nondestructive material testing use sources with activities of 1 TBq and more. The high γ-energies result in a significant mass difference between 60 Ni and 60 Co of 0.003 u. read more
Uses of Cobalt-60 Cobalt-60 is used in a process called industrial radiography, to inspect metal parts and welds for defects. Beams of radiation are aimed at the object to be checked from a sealed source of Co-60. read more