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. dataBunrup or time 235U 239Pu 240Pu 241Pu 242Pu

ENDF/B-VII.10 MWd/kgU0.000.000.000.000.00
10 MWd/kgU0.140.991.371.382.72
30 MWd/kgU0.581.471.781.312.47
50 MWd/kgU1.331.952.221.772.51
Shutdown1.952.162.472.062.60
1 year cooling1.952.132.472.162.60
100 years cooling1.952.132.342.062.60

SCALE 6.1
/COVA-44G
0 MWd/kgU0.000.000.000.000.00
10 MWd/kgU0.090.801.171.161.57
30 MWd/kgU0.431.111.460.970.42
50 MWd/kgU1.041.431.801.250.17
Shutdown1.531.582.001.470.23
1 year cooling1.531.561.991.540.23
100 years cooling1.521.561.901.470.23