Table 1
Major βeff sensitivities with 1σ statistical uncertainities (a = 20, top 15).
| Nuclide | Reaction | Sensitivity (%/%) |
|
|---|---|---|---|
| Critical core | Subcritical core | ||
| 239Pu |  |
−0.589 ± 0.013 | −0.520 ± 0.011 |
| 239Pu |  |
0.409 ± 0.001 | 0.362 ± 0.001 |
| 238U |  |
0.303 ± 0.001 | 0.277 ± 0.001 |
| 238U | Fission | 0.195 ± 0.003 | 0.175 ± 0.003 |
| 239Pu | Fission | −0.154 ± 0.013 | −0.140 ± 0.012 |
| 241Pu |  |
0.136 ± 0.000 | 0.119 ± 0.000 |
| 238U |  |
−0.128 ± 0.003 | −0.119 ± 0.002 |
| 240Pu |  |
−0.114 ± 0.002 | −0.105 ± 0.002 |
| 241Pu | Fission | 0.070 ± 0.002 | 0.060 ± 0.002 |
| 241Pu |  |
−0.067 ± 0.002 | −0.057 ± 0.002 |
| 240Pu |  |
0.063 ± 0.000 | 0.057 ± 0.000 |
| 238U | Elastic | −0.049 ± 0.037 | 0.006 ± 0.032 |
| 56Fe | Elastic | −0.037 ± 0.037 | −0.058 ± 0.032 |
| 240Pu | Fission | −0.036 ± 0.002 | −0.035 ± 0.002 |
| 238U | Inelastic | −0.034 ± 0.013 | −0.019 ± 0.011 |
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