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CPC Definition - Subclass H05G

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Last Updated Version: 2024.08
H05G
X-RAY TECHNIQUE (investigating or analysing materials by the use of X-rays G01N 23/00; apparatus for X-ray photography G03B 42/02; X-ray tubes H01J 35/00; TV systems having X-ray input H04N 5/321)
References
Limiting references

This place does not cover:

Investigating or analysing materials by the use of X-rays

G01N 23/00

Apparatus for X-ray photography

G03B 42/02

X-ray tubes

H01J 35/00

TV systems having X-ray input

H04N 5/321

Informative references

Attention is drawn to the following places, which may be of interest for search:

Apparatus for radiation diagnosis

A61B 6/00

X-ray therapy

A61N

Filters, conversion screens or microscopes

G21K

X-ray apparatus involving X-ray tubes; Circuits therefor
Definition statement

This place covers:

Devices intended to be used in conjunction with X-ray tubes and containing technical features relating to the operation of the X-ray tube, such as providing power, controlling the operation of the tube itself, cooling the tube.

References
Limiting references

This place does not cover:

Computed tomography

A61B 6/03

Positioning of patients; Tiltable beds or the like

A61B 6/04

Informative references

Attention is drawn to the following places, which may be of interest for search:

Measuring x-ray intensity

G01T

Regulating supply in general

G05F

Measuring electric values

H01R

Mounting the X-ray tube within a closed housing
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

X-ray windows

H01J 5/18

Obtaining pulses by using energy storage devices
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Pulse generators

H03K

Measuring, controlling or protecting (measuring X-ray radiation G01T)
References
Limiting references

This place does not cover:

Measuring X-ray radiation

G01T

Informative references

Attention is drawn to the following places, which may be of interest for search:

Measuring electric values

G01R

Supply voltage of the X-ray apparatus or tube
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Regulating supply without reference to operating characteristics of the apparatus

G05F

Anode current, heater current or heater voltage of X-ray tube
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Regulating supply without reference to operating characteristics of the apparatus

G05F

Compensating the voltage drop occurring at the instant of switching-on of the apparatus
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Regulating supply without reference to operating characteristics of the apparatus

G05F

Protecting {or lifetime prediction} (overload protection combined with control H05G 1/46)
References
Limiting references

This place does not cover:

Overload protection combined with control

H05G 1/46

Apparatus or processes specially adapted for producing X-rays, not involving X-ray tubes, e.g. involving generation of a plasma (X-ray lasers H01S 4/00)
References
Limiting references

This place does not cover:

X-ray lasers

H01S 4/00

Informative references

Attention is drawn to the following places, which may be of interest for search:

Plasma technique in general

H05H

{Production of X-ray radiation generated from plasma}
Definition statement

This place covers:

Generation of recombination radiation in hot plasma, interaction of laser radiation with highly charged ions for harmonics generation.

Devices in which a plasma is used for generation of electrons to be accelerated towards an anode

H01J 35/00

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Plasma for generation of electrons to be accelerated towards an anode

H01J 35/00

{Supply of the plasma generating material}
Synonyms and Keywords

In patent documents, the word/expression in the first column is often used instead of the word/expression in the second column, which is used in the classification scheme of this place:

target

Plasma-generating material

{Constructional details of the ejection system}
Definition statement

This place covers:

Details of the system for introducing the plasma-generating material into the source.

{Systems for collecting the plasma generating material after the plasma generation}
Definition statement

This place covers:

Apparatus for the collection of unused plasma-generating material, for exiting the plasma-generating material from the source.

{Arrangements for controlling the supply; Arrangements for measurements}
Definition statement

This place covers:

Apparatus and processes for controlling the supply of the plasma-generating material and arrangements for measuring "per se" or in relation with controlling the supply.

Special rules of classification

If in combination with the control of a laser beam that is involved in the process of generating the plasma, H05G 2/0084 should be also allocated.

{the plasma being generated from a material in a liquid or gas state}
Definition statement

This place covers:

Generation of radiation from plasma being produced from material which is provided in a non-bulk state, including liquids which solidify (e.g. in clusters or frozen droplets) in the vacuum chamber, e.g. after passing the liquid through a nozzle; discharge plasma sources; including Sn or Li sources where the material to be excited is evaporated or molten before excitation to plasma.

{the energy-carrying beam being a laser beam}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Lasers

H01S 3/00

{Optical arrangements for conveying the laser beam to the plasma generation location}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Optical systems in general

G02B

{for preconditioning the plasma generating material}
Definition statement

This place covers:

Lasers used for preconditioning the plasma generating material, i.e. not yet resulting in the desired X-ray emission.

{Auxiliary arrangements not involved in the plasma generation}
Definition statement

This place covers:

Aspects of the apparatus specially adapted for producing X-rays that are not directed to the generation of the plasma.

{Housing of the apparatus for producing X-rays; Environment inside the housing}
Definition statement

This place covers:

Details of the source vessel construction and internal environment, e.g. gas-filling.

{Reduction, prevention or protection from contamination; Cleaning}
Definition statement

This place covers:

Apparatus and processes for preventing and/or reducing contamination, e.g. debris generating from the plasma material, and for protecting and cleaning elements of the X-ray apparatus, e.g. the collector.

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Lamphouse reflector arrangements

G03F 7/70175

Pollution mitigation

G03F 7/70916

Cleaning

G03F 7/70925

Devices having a multilayer structure

G21K 1/062