with radium emanation

Full Title

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) > with radium emanation