Propagation of Cross-Section Uncertainties in Criticality Calculations in the Framework of UAM-Phase I Using MCNPX-2.7e and SCALE-6.1

Table 1

Reaction cross sections perturbed using PERT cards in the MCNPX-2.7e calculations.

Reaction	Isotopes
𝜎(𝑛,𝑛)	^152,154,155,156,157,158,160Gd, ^238U, ^107,109Ag, ^113Cd, ^115In
𝜎(𝑛,𝑛^′)	^238U
𝜎(𝑛,𝑓)	^235,238U
𝜎(𝑛,𝛾)	^152,154,155,156,157,158,160Gd, ^238U, ^107,109Ag, ^113Cd, ^115In