Computational Method for Global Sensitivity Analysis of Reactor Neutronic Parameters

Table 2

Test covariance matrix [21]. Values in bold correspond to Case A, in bold and non-italic correspond to Case B, and the full covariance matrix correspond to Case C.

	Σ^1𝑐	Σ^2𝑐	Σ^1𝑓	Σ^2𝑓	𝜈Σ^1𝑓	𝜈Σ^2𝑓	Σ𝑠^1→2
Σ^1𝑐	1.21	0.23	−0.63	−0.04	−0.57	−0.03	0.77
Σ^2𝑐	0.23	0.54	−0.09	−0.48	−0.07	−0.34	−0.01
Σ^1𝑓	−0.63	−0.09	𝟎.𝟔𝟖	0.11	0.87	0.08	−0.68
Σ^2𝑓	−0.04	−0.48	0.11	𝟎.𝟑𝟐	0.06	0.72	0.04
𝜈Σ^1𝑓	−0.57	−0.07	0.87	0.06	𝟎.𝟗𝟖	0.12	−0.64
𝜈Σ^2𝑓	−0.03	−0.34	0.08	0.72	0.12	𝟎.𝟒𝟓	0.04
Σ𝑠^1→2	0.77	−0.01	−0.68	0.04	−0.64	0.04	𝟏.𝟏𝟏