| G | SK | PHYSICS |
| G21 | USK | NUCLEONICS |
| G21 | KL | NUCLEAR PHYSICS; NUCLEAR ENGINEERING |
| G21K | UKL | TECHNIQUES FOR HANDLING PARTICLES OR IONISING RADIATION NOT OTHERWISE PROVIDED FOR; IRRADIATION DEVICES; GAMMA RAY OR X-RAY MICROSCOPES [2] |
| G21K 1/00 | HGR | Arrangements for handling particles or ionising radiation, e.g. focusing or moderating (ionising radiation filters G21K 3/00; production or acceleration of neutrons, electrically-charged particles, neutral molecular beams or neutral atomic beams H05H 3/00-H05H 15/00) [1, 2, 2006.01] |
| G21K 1/02 | UGR1 | | . | using diaphragms, collimators [2, 2006.01] |
|
| G21K 1/04 | UGR2 | | . . | using variable diaphragms, shutters, choppers [2, 2006.01] |
|
| G21K 1/06 | UGR1 | | . | using diffraction, refraction, or reflection, e.g. monochromators (G21K 1/10, G21K 7/00 take precedence) [2, 2006.01] |
|
| G21K 1/08 | UGR1 | | . | Deviation, concentration, or focusing of the beam by electric or magnetic means (electron-optical arrangements in electric discharge tubes H01J 29/46) [2, 2006.01] |
|
| G21K 1/087 | UGR2 | | . . | by electrical means [4, 2006.01] |
|
| G21K 1/093 | UGR2 | | . . | by magnetic means [4, 2006.01] |
|
| G21K 1/10 | UGR1 | | . | Scattering devices; Absorbing devices [2, 2006.01] |
|
| G21K 1/12 | UGR2 | | . . | Resonant absorbers or driving arrangements therefor, e.g. for Mössbauer-effect devices [3, 2006.01] |
|
| G21K 1/14 | UGR1 | | . | using charge exchange devices, e.g. for neutralising or changing the sign of the electrical charges of beams [3, 2006.01] |
|
| G21K 1/16 | UGR1 | | . | using polarising devices, e.g. for obtaining a polarised ion beam [3, 2006.01] |
|
| G21K 3/00 | HGR | Ionising radiation filters, e.g. X-ray filters [2, 2006.01] |
| G21K 4/00 | HGR | Conversion screens for the conversion of the spatial distribution of particles or ionising radiation into visible images, e.g. fluoroscopic screens [3, 2006.01] |
| G21K 5/00 | HGR | Irradiation devices (adaptations of reactors to facilitate irradiation G21C 23/00; discharge tubes for irradiating H01J 33/00, H01J 37/00) [2, 2006.01] |
| G21K 5/02 | UGR1 | | . | having no beam-forming means [2, 2006.01] |
|
| G21K 5/04 | UGR1 | | . | with beam-forming means [2, 2006.01] |
|
| G21K 5/08 | UGR1 | | . | Holders for targets or for objects to be irradiated [2, 2006.01] |
|
| G21K 5/10 | UGR1 | | . | with provision for relative movement of beam source and object to be irradiated [3, 2006.01] |
|
| G21K 7/00 | HGR | Gamma ray or X-ray microscopes [2, 2006.01] |