IPC Subgroup
H01J 27/26 using surface ionisation, e.g. field effect ion sources, thermionic ion sources
Introduced: January 1980
Last revised: January 2006
Full Title
Ion beam tubes > Ion sources; Ion guns > using surface ionisation, e.g. field effect ion sources, thermionic ion sources
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRIC ELEMENTS
- Subclass:
- ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS