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IPC 7
G21G-G21G00500

SECTION G – PHYSICS


G 21NUCLEAR PHYSICS; NUCLEAR ENGINEERING


G 21 GCONVERSION 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) [2]



1/

00Arrangements 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) [2]

1/

02.in nuclear reactors (by thermonuclear reactions G21B; conversion of nuclear fuel G21C)

1/

04.outside of nuclear reactors or particle accelerators  [2]

1/

06..by neutron irradiation  [2]

1/

08...accompanied by nuclear fission  [2]

1/

10..by bombardment with electrically-charged particles (irradiation devices G21K 5/00)  [2]

1/

12..by electromagnetic irradiation, e.g. with gamma or X-rays (applications of radiation G21H 5/00; irradiation devices G21K 5/00)  [2]


4/

00Radioactive 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) [2]

4/

02.Neutron sources  [2]

4/

04.Radioactive sources other than neutron sources (radioactive dressings A61M 36/14)  [2]

4/

06..characterised by constructional features  [2]

4/

08...specially adapted for medical applications (radiation therapy using radioactive sources A61N 5/10)  [2]

4/

10..with radium emanation  [2]


5/

00Alleged conversion of chemical elements by chemical reaction


  
 

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