G
SECTION G — PHYSICS
  
NUCLEONICS
 G21
NUCLEAR PHYSICS; NUCLEAR ENGINEERING
 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)  [2]
 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)  [2]
 G21G 1/02
·  in nuclear reactors (by thermonuclear reactions G21B; conversion of nuclear fuel G21C)
 G21G 1/04
·  outside of nuclear reactors or particle accelerators  [2]
 G21G 1/06
·  ·  by neutron irradiation  [2]
 G21G 1/08
·  ·  ·  accompanied by nuclear fission  [2]
 G21G 1/10
·  ·  by bombardment with electrically-charged particles (irradiation devices G21K 5/00)  [2]
 G21G 1/12
·  ·  by electromagnetic irradiation, e.g. with gamma or X-rays (applications of radiation G21H 5/00; irradiation devices G21K 5/00)  [2]
 G21G 3/00
( transferred to G21G 4/00, G21K )
 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)  [2]
 G21G 4/02
·  Neutron sources  [2]
 G21G 4/04
·  Radioactive sources other than neutron sources (radioactive dressings A61N 5/12)  [2]
 G21G 4/06
·  ·  characterised by constructional features  [2]
 G21G 4/08
·  ·  ·  specially adapted for medical applications (radiation therapy using radioactive sources A61N 5/10)  [2]
 G21G 4/10
·  ·  with radium emanation  [2]
 G21G 5/00
Alleged conversion of chemical elements by chemical reaction