IPC Definitions - January 01, 2012
G21K - Definition
This subclass covers:
Arrangements for handling particles or ionising radiation, e.g. focusing or moderating;
Ionising radiation filters, e.g. X-ray filters;
Conversion screens for the conversion of the spatial distribution of particles or ionising radiation into visible images, e.g. fluoroscopic screens;
Irradiation devices;
Gamma ray or X-ray microscopes.
References relevant to classification in this subclass
This subclass does not cover:
Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons | G01N 23/00 |
Adaptations of reactors to facilitate experimentation or irradiation | G21C 23/00 |
Electron-optical arrangements in cathode ray tubes or electron beam tubes | H01J 29/46 |
Discharge tubes with provision for emergence of electrons or ions from the vessel; Lenard tubes | H01J 33/00 |
Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof | H01J 37/00 |
Electron or ion microscopes with scanning beams | H01J 37/28 |
Production or acceleration of neutral particle beams, e.g. molecular or atomic beams | H05H 3/00 |
Direct voltage accelerators; accelerators using single pulses | H05H 5/00 |
Targets for producing nuclear reactions | H05H 6/00 |
Details of linear accelerators, magnetic induction accelerators, cyclotrons and magnetic resonance accelerators | H05H 7/00 |
Linear accelerators | H05H 9/00 |
Magnetic induction accelerators, e.g. betatrons | H05H 11/00 |
Magnetic resonance accelerators; Cyclotrons | H05H 13/00 |
Methods or devices for acceleration of charged particles not otherwise provided for | H05H 15/00 |
Attention is drawn to the following places, which may be of interest for search:
Investigating or analysing materials by investigating the ionisation of gases | G01N 27/62 |
Scanning probe techniques or apparatus; applications of scanning probe techniques, e.g. scanning probe microscopy | G01Q |
X-ray apparatus involving X-ray tubes; circuits therefor | H05G 1/00 |
Apparatus or processes specially adapted for producing X-rays, not involving X-ray tubes, e.g. involving generation of plasma | H05G 2/00 |
Generating plasma; handling plasma | H05H 1/00 |
Particle spectrometers or separator tubes | H01J 49/00 |
In this subclass, the following terms or expressions are used with the meaning indicated:
Ionising radiation | ‘Ionising radiation’ consists of particles or electromagnetic waves that are sufficiently energetic to detach electrons from atoms or molecules, thus ionising them. |
Particle | ‘Particle’ means a molecular, atomic or sub-atomic particle |