| 976 / | HD | NUCLEAR TECHNOLOGY |
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| DIG 410 |  | ARRANGEMENTS FOR OBTRAINING ELECTRICAL ENERGY FROM RADIOACTIVE SOURCES (e.g., from radioactive isotopes, nuclear or atomic batteries) [G21H-1/00] *** (fusion reactors DIG. 1+; nuclear reactors DIG. 5+) {6} |
| DIG 411 | DD | .~> Cells charged directly by beta radiation [G21H-1/02] |
| DIG 412 | DD | .~> Cells using secondary emission induced by alpha radiation, beta radiation, or gamma radiation [G21H-1/04] *** (discharge tubes H01J-40/00) |
| DIG 413 | DD | .~> Cells wherein radiation is applied to the junction of different semiconductor materials [G21H-1/06] |
| DIG 414 | DD | .~> Cells in which radiation ionizes a gas in the presence of a junction of two dissimilar metals (i.e., contact potential difference cells) [G21H-1/08] *** (discharge tubes H01J) |
| DIG 415 | DD | .~> Cells in which radiation of disintegration heats a thermoelectric junction or a thermionic converter [G21H-1/10] *** (devices where heating occurs from fission reactions DIG. 39; discharge tubes functioning as thermionic generators H01J-45/00; thermoelectric devices comprising a junction of dissimilar materials H01L-35/00) {2} |
| DIG 418 | DD | .~> Cells using conversion of the radiation into light combined with subsequent photoelectric conversion into electric energy [G21H-1/12] |