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Table 6

Sensitivity S(σγ) in %/% of the calculated Neodymium buildup in the 235U samples to the Nd capture cross-sections. The last two columns report the relative uncertainties calculated with equations (9) and (10) by using the relative uncertainties reported in reference [19] and ratios given in Table 5.

Isotopic ratio Sensitivity coefficients S(σγ) (%/%) Relative uncertainties

σγ(143Nd) σγ(144Nd) σγ(145Nd) σγ(146Nd) σγ(148Nd) σγ(150Nd) (ΔC/C)unc (ΔC/C)bias
143Nd/235U −0.013 0.02% 0.12%
144Nd/235U 0.015 −0.002 0.02% 0.17%
145Nd/235U 0.003 −0.043 0.06% 0.66%
146Nd/235U 0.051 −0.008 0.07% 0.78%
148Nd/235U −0.013 0.02% 0.23%
150Nd/235U −0.013 0.08% 0.05%

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