The production process that consists of neutron irradiation of the target and the subsequent encapsulation of the irradiated pellets is demonstrated through the example of 192Ir-sealed source production (see Table 8.18).

60Co-sealed sources are produced in the nuclear reaction of 60Co(n, Y)60Co with similar processing as that of 192Ir, but applying much longer irradiation time (i. e., several months).

8.8.1 Quality Control of Sealed Radioactive Sources

At the production of sealed (encapsulated) radioactive sources, quality control includes activity testing, surface contamination testing, and leakage testing (see Table 8.19).