| 976 / | HD | NUCLEAR TECHNOLOGY |
|
| DIG 5 | DD | NUCLEAR REACTORS [G21C-1/00] *** (fusion reactors H05H-1/00; nuclear explosives DIG. 423; analogue computers therefor G06G-7/54) {4} |
| DIG 16 | DD | .~ Thermal reactors; Epithermal reactors [G21C-1/04] {2} |
| DIG 17 |  | .~.~ Heterogeneous reactors (i.e., in which the fuel and moderator are separated) [G21C-1/06] {4} |
| DIG 18 | DD | .~.~.~> Pebble-bed reactors; Reactors with granular fuel [G21C-1/06B] |
| DIG 19 | DD | .~.~.~> Moderator being highly pressurized (e.g., boiling water reactor; integral super-heat reactor; pressurized water reactor) [G21C-1/08] *** (DIG. 30 takes precedence) {5} |
| DIG 26 | DD | .~.~.~> Moderator being substantially not pressurized (e.g., swimming-pool reactor [G21C-1/14] *** (DIG. 30 takes precedence) {1} |
| DIG 30 | DD | .~.~.~> Using fluid or fluent fuel [G21C-1/22] *** (With granular fuel DIG. 18) |