IPC Definitions - January 01, 2012

G21G - Definition fr

Definition statement

This subclass covers:

Arrangements for the conversion of chemical elements, including but not limited to, arrangements using electromagnetic radiation, corpuscular radiation or particle bombardment. Examples include systems for producing radioactive isotopes through neutron bombardment.

Radioactive sources.

Alleged conversion of chemical elements by chemical reaction.

References relevant to classification in this subclass

This subclass does not cover:

Adaptations of reactors to facilitate experimentation or irradiation. Examples of such adaptations include modification of the reactor core to enable exposure of samples for investigative purposes.

G21C 23/00

Irradiation devices. These typically include arrangements to deliberately subject bodies or materials to ionising radiation in order to take advantage of known effects of the radiation thereon.

G21K 5/00
Examples of places where the subject matter of this subclass is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:

Applying radioactive material to the body

A61M 36/00

Radiation therapy using radioactive sources

A61N 5/10

Conversion of chemical elements by thermonuclear reactions in fusion reactors

G21B

Conversion of nuclear fuel in fission reactors

G21C

Application of radiation from radioactive sources

G21H 5/00

Informative references

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

Preparations containing radioactive substances for use in therapy or testing in vivo

A61K 51/00

Separation of different isotopes of the same element

B01D 59/00

Handling particles or electromagnetic radiation not otherwise provided for

G21K

Producing neutrons or other subatomic particles, X- or gamma rays:

in fusion reactors

G21B

in nuclear reactors

G21C

by cosmic radiation

G21H 7/00

in accelerators

H05H

X-ray tubes

H01J 35/00

Gamma masers

H01S 4/00