1. CPC Sections
  2. CPC Section G
  3. CPC Class G21
  4. CPC Subclass G21K
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CPC
COOPERATIVE PATENT CLASSIFICATION
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G21K
TECHNIQUES FOR HANDLING PARTICLES OR IONISING RADIATION NOT OTHERWISE PROVIDED FOR; IRRADIATION DEVICES; GAMMA RAY OR X-RAY MICROSCOPES [2018-08]
NOTE

  • In this subclass, the following term is used with the meaning indicated:
    • "particle" means a molecular, atomic or subatomic particle
WARNINGS

  • The following IPC groups are not in the CPC scheme. The subject matter for these IPC groups is classified in the following CPC groups:
    G21K3/00 covered by G21K 1/10
  • In this subclass non-limiting references (in the sense of paragraph 39 of the Guide to the IPC) may still be displayed in the scheme.
G21K 1/00
Arrangements for handling particles or ionising radiation, e.g. focusing or moderating (production or acceleration of neutrons, electrically-charged particles, neutral molecular beams or neutral atomic beams H05H 3/00 - H05H 15/00) [2017-08]
G21K 1/003
.
{Manipulation of charged particles by using radiation pressure, e.g. optical levitation (acceleration of charged particles H05H 5/00, H05H 7/00, H05H 9/00, H05H 11/00, H05H 13/00)} [2013-01]
G21K 1/006
.
{Manipulation of neutral particles by using radiation pressure, e.g. optical levitation (production or acceleration of neutral particles H05H 3/00)} [2013-01]
G21K 1/02
.
using diaphragms, collimators [2013-01]
G21K 1/025
. .
{using multiple collimators, e.g. Bucky screens; other devices for eliminating undesired or dispersed radiation} [2013-01]
G21K 1/04
. .
using variable diaphragms, shutters, choppers [2013-01]
G21K 1/043
. . .
{changing time structure of beams by mechanical means, e.g. choppers, spinning filter wheels} [2013-01]
G21K 1/046
. . .
{varying the contour of the field, e.g. multileaf collimators} [2013-01]
G21K 1/06
.
using diffraction, refraction or reflection, e.g. monochromators (G21K 1/10, G21K 7/00 take precedence) [2013-01]
G21K 1/062
. .
{Devices having a multilayer structure} [2013-01]
G21K 1/065
. .
{using refraction, e.g. Tomie lenses} [2013-01]
G21K 1/067
. .
{using surface reflection, e.g. grazing incidence mirrors, gratings (multilayer mirrors G21K 1/062; crystal optics G21K 1/06)} [2013-01]
G21K 1/08
.
Deviation, concentration or focusing of the beam by electric or magnetic means (electron-optical arrangements in electric discharge tubes H01J 29/46; {details, e.g. electric or magnetic deviating means for direct voltage accelerators or in accelerators using single pulses H05H 5/02; arrangements for injecting particles into orbits H05H 7/08; arrangements for ejecting particles from orbits H05H 7/10}) [2013-01]
G21K 1/087
. .
by electrical means [2013-01]
G21K 1/093
. .
by magnetic means [2013-01]
G21K 1/10
.
Scattering devices; Absorbing devices; Ionising radiation filters [2013-01]
G21K 1/12
. .
Resonant absorbers or driving arrangements therefor, e.g. for Moessbauer-effect devices {(motors with reciprocating, oscillating or vibrating magnet, armature or coil system in general H02K 33/00)} [2013-01]
G21K 1/14
.
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) [2013-01]
G21K 1/16
.
using polarising devices, e.g. for obtaining a polarised beam {(ion sources, ion guns H01J 27/02; polarised targets for producing nuclear reactions H05H 6/005)} [2013-01]
G21K 4/00
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) [2013-01]
G21K 2004/02
.
{characterised by the external panel structure} [2013-01]
G21K 2004/04
.
{with an intermediate layer} [2013-01]
G21K 2004/06
.
{with a phosphor layer} [2013-01]
G21K 2004/08
.
{with a binder in the phosphor layer} [2013-01]
G21K 2004/10
.
{with a protective film} [2013-01]
G21K 2004/12
.
{with a support} [2013-01]
G21K 5/00
Irradiation devices (discharge tubes for irradiating H01J 37/00) [2013-01]
G21K 5/02
.
having no beam-forming means [2013-01]
G21K 5/04
.
with beam-forming means [2013-01]
G21K 5/08
.
Holders for targets or for other objects to be irradiated [2017-08]
G21K 5/10
.
with provision for relative movement of beam source and object to be irradiated [2013-01]
G21K 7/00
Gamma- or X-ray microscopes [2013-01]
G21K 2201/00
Arrangements for handling radiation or particles [2013-01]
G21K 2201/06
.
using diffractive, refractive or reflecting elements [2013-01]
G21K 2201/061
. .
characterised by a multilayer structure [2013-01]
G21K 2201/062
. .
the element being a crystal [2013-01]
G21K 2201/064
. .
having a curved surface [2013-01]
G21K 2201/065
. .
provided with cooling means [2013-01]
G21K 2201/067
. .
Construction details [2013-01]
G21K 2201/068
. .
specially adapted for particle beams [2013-01]
G21K 2207/00
Particular details of imaging devices or methods using ionizing electromagnetic radiation such as X-rays or gamma rays [2013-01]
G21K 2207/005
.
Methods and devices obtaining contrast from non-absorbing interaction of the radiation with matter, e.g. phase contrast [2013-01]