Nuclide | Half-life (y) |
Critical mass (kg) |
Diameter (cm) |
Ref |
---|---|---|---|---|
uranium-233 | 159,200 | 15 | 11 | [1] |
uranium-235 | 703,800,000 | 52 | 17 | [1] |
neptunium-236 | 154,000 | 7 | 8.7 | [2] |
neptunium-237 | 2,144,000 | 60 | 18 | [3] [4] |
plutonium-238 | 87.7 | 9.04–10.07 | 9.5–9.9 | [5] |
plutonium-239 | 24,110 | 10 | 9.9 | [1] [5] |
plutonium-240 | 6561 | 40 | 15 | [1] |
plutonium-241 | 14.3 | 12 | 10.5 | [6] |
plutonium-242 | 375,000 | 75–100 | 19–21 | [6] |
americium-241 | 432.2 | 55–77 | 20–23 | [7] |
americium-242m | 141 | 9–14 | 11–13 | [7] |
americium-243 | 7370 | 180–280 | 30–35 | [7] |
curium-243 | 29.1 | 7.34–10 | 10–11 | [8] |
curium-244 | 18.1 | 13.5–30 | 12.4–16 | [8] |
curium-245 | 8500 | 9.41–12.3 | 11–12 | [8] |
curium-246 | 4760 | 39–70.1 | 18–21 | [8] |
curium-247 | 15,600,000 | 6.94–7.06 | 9.9 | [8] |
berkelium-247 | 1380 | 75.7 | 11.8-12.2 | [9] |
berkelium-249 | 0.9 | 192 | 16.1-16.6 | [9] |
californium-249 | 351 | 6 | 9 | [2] |
californium-251 | 900 | 5.46 | 8.5 | [2] |
californium-252 | 2.6 | 2.73 | 6.9 | [10] |
einsteinium-254 | 0.755 | 9.89 | 7.1 | [9] |
Nuclide | Half-life (y) |
Critical mass (kg) |
Diameter (cm) |
Ref |
---|---|---|---|---|
uranium-233 | 159,200 | 15 | 11 | [1] |
uranium-235 | 703,800,000 | 52 | 17 | [1] |
neptunium-236 | 154,000 | 7 | 8.7 | [2] |
neptunium-237 | 2,144,000 | 60 | 18 | [3] [4] |
plutonium-238 | 87.7 | 9.04–10.07 | 9.5–9.9 | [5] |
plutonium-239 | 24,110 | 10 | 9.9 | [1] [5] |
plutonium-240 | 6561 | 40 | 15 | [1] |
plutonium-241 | 14.3 | 12 | 10.5 | [6] |
plutonium-242 | 375,000 | 75–100 | 19–21 | [6] |
americium-241 | 432.2 | 55–77 | 20–23 | [7] |
americium-242m | 141 | 9–14 | 11–13 | [7] |
americium-243 | 7370 | 180–280 | 30–35 | [7] |
curium-243 | 29.1 | 7.34–10 | 10–11 | [8] |
curium-244 | 18.1 | 13.5–30 | 12.4–16 | [8] |
curium-245 | 8500 | 9.41–12.3 | 11–12 | [8] |
curium-246 | 4760 | 39–70.1 | 18–21 | [8] |
curium-247 | 15,600,000 | 6.94–7.06 | 9.9 | [8] |
berkelium-247 | 1380 | 75.7 | 11.8-12.2 | [9] |
berkelium-249 | 0.9 | 192 | 16.1-16.6 | [9] |
californium-249 | 351 | 6 | 9 | [2] |
californium-251 | 900 | 5.46 | 8.5 | [2] |
californium-252 | 2.6 | 2.73 | 6.9 | [10] |
einsteinium-254 | 0.755 | 9.89 | 7.1 | [9] |