Research Article
Uncertainty Propagation Analysis for PWR Burnup Pin-Cell Benchmark by Monte Carlo Code McCARD
Table 4
RSDs (%) of number densities with ENDF/B-VII.1 and SCALE6.1/COVA covariance data.
| Cov. data | Bunrup or time |
235U |
239Pu |
240Pu |
241Pu |
242Pu |
| ENDF/B-VII.1 | 0 MWd/kgU | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 10 MWd/kgU | 0.14 | 0.99 | 1.37 | 1.38 | 2.72 | 30 MWd/kgU | 0.58 | 1.47 | 1.78 | 1.31 | 2.47 | 50 MWd/kgU | 1.33 | 1.95 | 2.22 | 1.77 | 2.51 | Shutdown | 1.95 | 2.16 | 2.47 | 2.06 | 2.60 | 1 year cooling | 1.95 | 2.13 | 2.47 | 2.16 | 2.60 | 100 years cooling | 1.95 | 2.13 | 2.34 | 2.06 | 2.60 |
| SCALE 6.1 /COVA-44G | 0 MWd/kgU | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 10 MWd/kgU | 0.09 | 0.80 | 1.17 | 1.16 | 1.57 | 30 MWd/kgU | 0.43 | 1.11 | 1.46 | 0.97 | 0.42 | 50 MWd/kgU | 1.04 | 1.43 | 1.80 | 1.25 | 0.17 | Shutdown | 1.53 | 1.58 | 2.00 | 1.47 | 0.23 | 1 year cooling | 1.53 | 1.56 | 1.99 | 1.54 | 0.23 | 100 years cooling | 1.52 | 1.56 | 1.90 | 1.47 | 0.23 |
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