Table 9.
Concentrations of 236U and 238U as a function of time after the end of the chain reactions.
| Concentrations | ||
|---|---|---|
| Duration (in years) | 238U | 236U |
| 0, | 9.766 1021 | 2.211 1019 |
| 106 | 9.764 1021 | 2.175 1019 |
| 107 | 9.751 1021 | 1.671 1019 |
| 108 | 9.616 1021 | 1.202 1018 |
| 1,95 109 | 7.216 1021 | 2.450 100 |
Considering its half-life, the 236U concentration should be negligible today. Neutron capture alone on 235U does not explain this value. It is therefore necessary to consider another 236U formation path. The analysis of the results from the MENDEL calculations allows us to wonder about the radioactive decay of 244Pu. Confirmation of this point could be interesting for pollution studies in natural environments.
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