IPC Definitions - January 01, 2012

G21K - Definition fr

Definition statement

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
Places in relation to which this subclass is residual:

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

Informative references

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

Glossary of terms

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