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Table 7 Measured specific saturation activities as compared to the calculated values obtained with the two methods for epithermal neutron self shielding correction

From: Estimation of 99Mo production rates from natural molybdenum in research reactors

  Measured saturation activities Measured over calculated sat.act. Ratios
Participant country        Trkov Chilian
  Mo2O3 Unc Slab 1 × 1 cm Unc Slab 1 × 5 cm Unc Mo2O3 Slab 1 × 1 cm Slab 1 × 5 cm Mo2O3 Slab 1 × 1 cm Slab 1 × 5 cm
  Ci/g % Ci/g % Ci/g % Ci/g Ci/g Ci/g Ci/g Ci/g Ci/g
Chile 3.21E−02 4.0 3.24E−02 4.0 3.21E−02 4.0 0.931 1.034 1.034 0.915 0.982 0.973
Egypt 1.59E−03 0.3 1.47E−03 0.4 1.49E−03 1.3 1.011 0.977 0.992 1.008 0.966 0.979
Hungary 1.63E+00 0.4 1.45E+00 0.4 1.46E+00 0.4 1.040 1.133 1.172 0.995 0.986 0.993
Kazachstan 6.25E−01 3.0 5.62E−01 2.0 5.79E−01 2.0 1.831 1.695 1.746 1.833 1.697 1.748
Malaysia 6.85E−02 15.0 7.49E−02 5.5 8.27E−02 9.0 0.888 1.118 1.255 0.862 1.023 1.130
Morocco 5.75E−02 0.9 5.32e−02 1.0 4.75E−02 1.0 1.003 1.131 1.034 0.961 0.990 0.883
NL BBB    4.49E−01 2.0 4.42E−01 2.0   1.079 1.094   0.923 0.909
NL BP3 4.27E−02 1.4      1.015    0.996   
Peru 5.46E−02 3.0 5.38E−02 3.0 5.26E−02 3.0 0.877 0.989 0.982 0.853 0.910 0.889
Portugal 1.72E−02 8.0 1.21E−02 8.0 1.32E−02 8.0 1.221 0.949 1.046 1.199 0.898 0.980
Romania 1.04E−01 1.5 1.02E−01 6.0 9.60E−02 1.5 0.833 0.950 0.911 0.807 0.863 0.812
Slovenia 1.45E−02 0.7 1.19E−02 0.6 1.28E−02 0.5 1.004 0.992 1.092 0.965 0.876 0.942
Ukraine 1.55E+00 3.0 1.44E+00 3.0 1.38E+00 3.0 1.305 1.298 1.251 1.290 1.254 1.201
Vietnam beam 7.50E−09 2.0 8.40E−09 2.0 7.30E−09 2.0 0.887 1.024 0.890 0.887 1.024 0.890
Vietnam trap 1.89E−01 2.1 1.85E−01 2.0 1.88E−01 2.1 1.550 1.709 1.760 1.514 1.592 1.618
  1. The 1 s.d. uncertainties were calculated from the Poisson uncertainties in the measured peak areas
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