Uncertainty Analysis of Light Water Reactor Fuel Lattices

Table 8

Two-group cross-section uncertainty (%Δ𝑅/𝑅) in GEN-III fuel assembly.

Response cross-section	GEN III type 1	GEN III type 2	GEN III type 3	GEN III type 4
∑𝑡1	0.90	0.90	0.90	0.97
∑𝑡2	0.14	0.14	0.14	0.14
𝐷1	0.90	0.90	0.90	0.97
𝐷2	0.14	0.14	0.14	0.14
∑𝑎1	0.89	0.89	0.89	1.00
∑𝑎2	0.21	0.19	0.19	0.24
∑𝑓1	0.37	0.37	0.50	0.44
∑𝑓2	0.32	0.32	0.33	0.62
∑11	0.90	0.90	0.90	0.97
∑12	1.25	1.25	1.24	1.47
∑21	0.33	0.32	0.31	0.37
∑22	0.15	0.15	0.15	0.16