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Table 4

Mean sensitivity S(φ) in %/% of the calculated Neodymium buildup in the 235U samples to the fluence [18]. The relative uncertainties (ΔC/C)φ due to the accuracy of the neutron fluence scaling (Δφ/φ = 1.5%) is calculated with equation (8).

Isotopic ratio PROFIL-1 PROFIL-2

S(φ) (ΔC/C)φ S(φ) (ΔC/C)φ
143Nd/235U 1.11 1.7% 1.22 1.7%
145Nd/235U 1.10 1.7% 1.21 1.7%
146Nd/235U 1.15 1.7% 1.31 2.0%
148Nd/235U 1.12 1.7% 1.24 1.9%
150Nd/235U 1.12 1.7% 1.24 1.9%

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