| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | plutonium 241 | nuclear engineering community | Plutonium 241 is used as a fuel in some nuclear reactors and as a heat source in radioisotope thermoelectric generators. | 1 |
| 2 | plutonium 241 | nuclear industry | Used as a fissile material in nuclear reactors and weapons | 1 |