Uncertainty Analysis of Light Water Reactor Fuel Lattices

Table 1

Uncertainty in 𝑘_inf in LWR unit cells.

Fuel	Operating conditions	𝑘inf	Uncertainty in 𝑘inf (%  Δ𝑘/𝑘)	Largest uncertainty-contributing reaction
BWR	HZP	1.3382	0.52	^238U(𝑛,𝛾)
	HFP (40% void)	1.2208	0.62	^238U(𝑛,𝛾)
PWR	HZP	1.4206	0.48	^238U(𝑛,𝛾)
	HFP	1.4017	0.49	^238U(𝑛,𝛾)
VVER	HZP	1.3448	0.51	^238U(𝑛,𝛾)
	HFP	1.3270	0.52	^238U(𝑛,𝛾)
KRITZ 2.1	HZP	1.2323	0.59	^238U(𝑛,𝛾)
	HFP	1.1837	0.63	^238U(𝑛,𝛾)
KRITZ 2.13	HZP	1.2642	0.55	^238U(𝑛,𝛾)
	HFP	1.2329	0.58	^238U(𝑛,𝛾)