Representativity studies of GEN-III large cores to ZPR experiments with respect to nuclear data - A first step towards transposition

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Table 12.

Relative contributions of the direct and indirect terms to the fission rate ratio sensitivity with respect to perturbation in some isotopic fission cross-sections.

	UAM-UOX		UAM-UOX		UH1.4		UMZ

Isotopes	Direct term	Ind. term	Direct term	Ind. term	Direct term	Ind. term	Direct term	Ind. term
$σ_{f}^{U 235}$ $\sigma _f^{U235}$	–1%	101%	7%	93%	53%	47%	91%	9%
$σ_{f}^{U 238}$ $\sigma _f^{U238}$	7%	93%	4%	96%	54%	46%	77%	23%
$σ_{f}^{Pu 239}$ $\sigma _f^{Pu239}$	–	–	7%	93%	–	–	79%	21%
$σ_{f}^{Pu 240}$ $\sigma _f^{Pu240}$	–	–	5%	95%	–	–	54%	46%
$σ_{f}^{Pu 241}$ $\sigma _f^{Pu241}$	–	–	7%	93%	–	–	73%	27%
$σ_{f}^{Pu 242}$ $\sigma _f^{Pu242}$	–	–	5%	95%	–	–	52%	48%

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