WebCPC CPC COOPERATIVE PATENT CLASSIFICATION

G21G　CONVERSION OF CHEMICAL ELEMENTS; RADIOACTIVE SOURCES (applications of radiation in general G21H 5/00; handling particles, e.g. neutrons, or electromagnetic radiation not otherwise provided for G21K)

G21G 1/00 Arrangements for converting chemical elements by electromagnetic radiation, corpuscular radiation or particle bombardment, e.g. producing radioactive isotopes (separation of different isotopes of the same element B01D 59/00)

G21G 1/0005 ・{Isotope delivery systems (use of radioisotopes as tracers G21H 5/02)}

G21G 1/001 ・{Recovery of specific isotopes from irradiated targets}

G21G 1/02 ・in nuclear reactors (by thermonuclear reactions G21B; conversion of nuclear fuel G21C)

G21G 1/04 ・outside nuclear reactors or particle accelerators

G21G 1/06 ・・by neutron irradiation

G21G 1/08 ・・・accompanied by nuclear fission

G21G 1/10 ・・by bombardment with electrically charged particles (irradiation devices G21K 5/00)

G21G 1/12 ・・by electromagnetic irradiation, e.g. with gamma or X-rays (applications of radiation G21H 5/00; irradiation devices G21K 5/00)

G21G 4/00 Radioactive sources (producing neutrons or other subatomic particles, X- or gamma rays, in fusion reactors G21B, in nuclear reactors G21C, by cosmic radiation G21H 7/00, in accelerators H05H; X-ray tubes H01J 35/00; gamma masers H01S 4/00)

G21G 4/02 ・Neutron sources

G21G 4/04 ・Radioactive sources other than neutron sources (radioactive dressings A61N 5/12)

G21G 4/06 ・・characterised by constructional features

G21G 4/08 ・・・specially adapted for medical application (radiation therapy using radioactive sources A61N 5/10)

G21G 4/10 ・・with radium emanation

G21G 5/00 Alleged conversion of chemical elements by chemical reaction

G21G 7/00 Conversion of chemical elements not provided for in other groups of this subclass

G21G 2001/00 Arrangements for converting chemical elements by electromagnetic radiation, corpuscular radiation or particle bombardment, e.g. producing radioactive isotopes (separation of different isotopes of the same element B01D 59/00)

G21G 2001/001 ・{Recovery of specific isotopes from irradiated targets}

G21G 2001/0015 ・・Fluorine

G21G 2001/0021 ・・Gallium

G21G 2001/0026 ・・Arsenic

G21G 2001/0031 ・・Rubidium

G21G 2001/0036 ・・Molybdenum

G21G 2001/0042 ・・Technetium

G21G 2001/0047 ・・Rhodium

G21G 2001/0052 ・・Palladium

G21G 2001/0057 ・・Indium

G21G 2001/0063 ・・Iodine

G21G 2001/0068 ・・Cesium

G21G 2001/0073 ・・Rhenium

G21G 2001/0078 ・・Thallium

G21G 2001/0084 ・・Bismuth

G21G 2001/0089 ・・Actinium

G21G 2001/0094 ・・Other isotopes not provided for in the groups listed above