Research Article

Presentation and Discussion of the UAM/Exercise I-1b: “Pin-Cell Burn-Up Benchmark” with the Hybrid Method

Table 9

Uncertainty in number density for some important major and minor actinides. Cross-section uncertainties are taken from SCALE6.1/44-GROUP ( XS) and decay data ( DD) source of uncertainty from JEFF-3.1.1.

0 GWd/MTU10 GWd/MTU30 GWd/MTU60 GWd/MTU
MeanMean Rel. std. dev. (%)Mean Rel. std. dev. (%)Mean Rel. std. dev. (%)
XS DD XS DD XS DD

233U 3.10.0 2.10.0 2.10.0
234U 1.00.0 1.90.0 3.10.0
235U 0.20.0 0.30.0 0.60.0
236U 0.80.0 0.50.0 0.40.0
238U 0.00.0 0.10.0 0.10.0
237Np 1.20.0 0.80.0 0.80.0
238Pu 2.30.0 1.40.0 0.90.0
239Pu 1.20.0 1.10.0 1.30.0
240Pu 3.10.0 2.10.0 1.90.0
241Pu 2.90.0 1.70.0 1.50.0
242Pu 3.70.0 1.90.0 1.40.0
241Am 3.30.1 1.90.1 1.80.1
243Am 5.90.0 3.00.0 1.90.0
244Cm 6.90.0 3.40.0 2.10.0