|
G21H 1/00
|
Arrangements for obtaining electrical energy from radioactive sources, e.g. from radioactive isotopes |
|
G21H 1/02
|
Cells charged directly by beta radiation |
|
G21H 1/04
|
Cells using secondary emission induced by alpha radiation, beta radiation, or gamma radiation |
|
G21H 1/06
|
Cells wherein radiation is applied to the junction of different semiconductor materials |
|
G21H 1/08
|
Cells in which radiation ionises a gas in the presence of a junction of two dissimilar metals, i.e. contact potential-difference cells |
|
G21H 1/10
|
Cells in which radiation heats a thermoelectric junction or a thermionic converter |
|
G21H 1/12
|
Cells using conversion of the radiation into light combined with subsequent photoelectric conversion into electric energy |
|
G21H 3/00
|
Arrangements for direct conversion of radiation energy from radioactive sources into forms of energy other than electric energy, e.g. light |
|
G21H 3/02
|
Arrangements for direct conversion of radiation energy from radioactive sources into forms of energy other than electric energy, e.g. light in which material is excited to luminesce by the radiation |
|
G21H 5/00
|
Applications of radiation from radioactive sources or arrangements therefor, not otherwise provided for |
|
G21H 5/02
|
Applications of radiation from radioactive sources or arrangements therefor, not otherwise provided for as tracers |
|
G21H 7/00
|
Use of effects of cosmic radiation |
