DIFF Subgroup
G21G 4/06 characterised by constructional features
Introduced: July 1974
Full Title
Full titles differ between systems:
IPC:
Radioactive sources > Radioactive sources other than neutron sources > characterised by constructional features
CPC:
Radioactive sources (producing neutrons or other subatomic particles, X- or gamma rays, in fusion reactors G21B, in nuclear reactors G21C, by cosmic radiation G21H7/00, in accelerators H05H; X-ray tubes H01J35/00; gamma masers H01S4/00) > Radioactive sources other than neutron sources (radioactive dressings A61N5/1029) > characterised by constructional features
IPC and CPC are identically structured here. All 1 subcodes exist in both systems.
1 shared codes have differing titles between IPC and CPC.
IPC defines codes here since 1974.
Child Classifications
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- G21G 4/08 specially adapted for medical application (radiation therapy using radioactive sources A61N5/10) since 1974 IPC+CPC Available in IPC and CPC