Decay mode and half-life of uranium 238. Uranium 238 decays via alpha decay. Uranium 238 occasionally decays by spontaneous fission. Material Properties
Decay mode and Half-life of Uranium 238
- Uranium 238 decays via alpha decay to 234Th.
- Half-life of uranium 238 is ~4.5×109 years.
- Uranium 238 occasionally decays by spontaneous fission with probability of 0.000055%.
- Its specific activity is very low ~3.4×10-7 Ci/g.
Source: JANIS (Java-based nuclear information software)
http://www.oecd-nea.org/janis/
| Isotope | Specific Activity |
|---|---|
| Uranium 232 | 22 Ci/g |
| Uranium 233 | 0.0098 Ci/g |
| Uranium 234 | 0.0063 Ci/g |
| Uranium 236 | 0.000065 Ci/g |
| Uranium 235 | 0.0000022 Ci/g |
| Uranium 238 | 0.00000034 Ci/g |
Table of specific activities of isotopes of uranium.
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