DIFF Subgroup
G21G 4/02 Neutron sources
Introduced: July 1974
Full Title
Full titles differ between systems:
IPC:
Radioactive sources > Neutron sources
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) > Neutron sources
No child classifications to compare. This is a leaf node in both IPC and CPC.