Table 1: Uncertainty in in LWR unit cells.

FuelOperating conditions Uncertainty in (%   )Largest uncertainty-contributing reaction

BWRHZP1.33820.52 238U( )
HFP (40% void)1.22080.62 238U( )
PWRHZP1.42060.48 238U( )
HFP1.40170.49 238U( )
VVERHZP1.34480.51 238U( )
HFP1.32700.52 238U( )
KRITZ 2.1HZP1.23230.59 238U( )
HFP1.18370.63 238U( )
KRITZ 2.13HZP1.26420.55 238U( )
HFP1.23290.58 238U( )