Ionizing radiation generators and radioactive sources for spare parts for devices that produce ionizing radiation

Generators of ionizing radiation
8401
Nuclear reactors; fuel elements "cartridges", non-irradiated, for nuclear reactors; machinery and apparatus for isotopic separation; parts thereof
Radioactive sources and spare parts for devices that produce ionizing radiation
2844
Radioactive chemical elements and radioactive isotopes, incl. their fissile or fertile chemical elements and isotopes, and their compounds; mixtures and residues containing these products