IPC Subgroup
G21K 1/04 using variable diaphragms, shutters, choppers
Introduced: July 1974
Last revised: January 2006
Full Title
Arrangements for handling particles or ionising radiation, e.g. focusing or moderating > using diaphragms, collimators > using variable diaphragms, shutters, choppers
Classification Context
- Section:
- PHYSICS
- Class:
- NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- Subclass:
- HANDLING OF PARTICLES OR IONISING RADIATION NOT OTHERWISE PROVIDED FOR; IRRADIATION DEVICES; GAMMA RAY OR X-RAY MICROSCOPES