| G | SK | PHYSICS |
| G21 | USK | NUCLEONICS |
| G21 | KL | NUCLEAR PHYSICS; NUCLEAR ENGINEERING |
| G21K | UKL | TECHNIQUES FOR HANDLING PARTICLES OR ELECTROMAGNETIC RADIATION NOT OTHERWISE PROVIDED FOR; IRRADIATION DEVICES; GAMMA- OR X-RAY MICROSCOPES (X-ray technique H05G; plasma technique H05H) [2] |
| G21K 1/00 | HGR | Arrangements for handling radiation or particles, e.g. focusing, moderating (radiation filters G21K 3/00) [2] |
| G21K 1/02 | UGR1 | | . | using diaphragms, collimators [2] |
|
| G21K 1/04 | UGR2 | | . . | using variable diaphragms, shutters, choppers [2] |
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| G21K 1/06 | UGR1 | | . | using diffraction, refraction, or reflection, e.g. monochromators (G21K 1/10 , G21K 7/00 take precedence) [2] |
|
| 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] |
|
| G21K 1/087 | UGR2 | | . . | by electrical means [4] |
|
| G21K 1/093 | UGR2 | |
| G21K 1/10 | UGR1 | | . | Scattering devices; Absorbing devices [2] |
|
| G21K 1/12 | UGR2 | | . . | Resonant absorbers or driving arrangements therefor, e.g. for M%$ssbauer-effect devices [3] |
|
| G21K 1/14 | UGR1 | | . | using charge exchange devices, e.g. for neutralising or changing the sign of the electrical charges of beams (producing or accelerating neutral particle beams H05H 3/00) [3] |
|
| G21K 1/16 | UGR1 | | . | using polarising devices, e.g. for obtaining a polarised ion beam [3] |
|
| G21K 3/00 | HGR | Radiation filters, e.g. X-ray filters [2] |
| G21K 4/00 | HGR | Conversion screens for the conversion of the spatial distribution of X-rays or particle radiation into visible images, e.g. fluoroscopic screens (photographic processes using X-ray intensifiers G03C 5/17; discharge tubes comprising luminescent screens H01J 1/62; cathode ray tubes for X-ray conversion with optical output H01J 31/50) [3] |
| 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] |
| G21K 5/02 | UGR1 | | . | having no beam-forming means [2] |
|
| G21K 5/04 | UGR1 | | . | with beam-forming means [2] |
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| G21K 5/08 | UGR1 | | . | Holders for targets or for objects to be irradiated [2] |
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| G21K 5/10 | UGR1 | | . | with provision for relative movement of beam source and object to be irradiated [3] |
|
| G21K 7/00 | HGR | Gamma- or X-ray microscopes [2] |