Classification
TNA - Nuclear engineering - general
TNO - Nuclear reactor safety
TNB - Nuclear power plants
6
TNL - Nuclear fuel, nuclear fuel elements - general
5
TNI - Reactor physics
4
TNJ - Nuclear reactor technology
4
TNK - Nuclear reactor components - general
3
TND - Gas cooled reactor types
2
UA - Environment - general
2
EPK - Nuclear energy
1
PGN - Fusion technology, plasma devices
1
TNE - Water cooled reactors
1
TNH - Research reactors
1
TNQ - Nuclear reactor operation, control, measurement
1