G
SECTION G — PHYSICS
  
NUCLEONICS
 G21
NUCLEAR PHYSICS; NUCLEAR ENGINEERING
 G21J
NUCLEAR EXPLOSIVES; APPLICATIONS THEREOF (electric or magnetic analogue computers, e.g. simulators, for nuclear physics G06G 7/54)
 G21J

Note(s)

This subclass covers uncontrollable fission or fusion reactions.

 G21J 1/00
Nuclear explosive devices
 G21J 3/00
Peaceful applications of nuclear explosive devices
 G21J 3/02
·  for excavation
 G21J 5/00
Detection arrangements for nuclear explosions (individual measuring devices G01)