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Influence of the Neutron Flux Characteristic Parameters in the Irradiation Channels of Reactor on NAA Results Using k0-Standardization Method

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DOI: 10.4236/ajac.2012.33033    3,869 Downloads   6,340 Views  
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ABSTRACT

An approximation method using to estimate the influence of the uncertainties of the neutron flux characteristic parameters in the irradiation positions on the NAA results using k0-standardization technique was presented. Those are the epithermal reactor neutron spectrum shape-factor α, the effective resonace energy Ε for a given nuclide and the thermal to epithermal neutron flux ratio f. The method is applied to estimate the effect of the uncertainties in the determination of α Ε, and f on final NAA results for some irradiation channels of the Dalat reactor. It also shows that presented method is suitable in practical use for the estimation of the errors due to the uncertainty of the neutron flux characteristic parameters at the irradiation position.

Conflicts of Interest

The authors declare no conflicts of interest.

Cite this paper

T. Van Hung, "Influence of the Neutron Flux Characteristic Parameters in the Irradiation Channels of Reactor on NAA Results Using k0-Standardization Method," American Journal of Analytical Chemistry, Vol. 3 No. 3, 2012, pp. 250-256. doi: 10.4236/ajac.2012.33033.

References

[1] A. Simonits, F. De Corte and J. Hoste, “Single-Comparator Methods in Reactor Neutron Activation Analysis,” Journal of Radioanalytical and Nuclear Chemistry, Vol. 24, No. 1, 1975, pp. 31-46. doi:10.1007/BF02514380
[2] A. Simonits, L. Moens, F. De Corte, A. De Wispelaere, A. Elek and J. Hoste, “k0-Measurements and Related Nuclear Data Comilation for (n,γ) Reactor Neutron Activation Analysis,” Journal of Radioanalytical and Nuclear Chemistry, Vol. 60, No. 2, 1980, pp. 461-516. doi:10.1007/BF02518906
[3] L. Moens, F. De Corte, A. De Wispelaere, J. Hoste, A. Simonits, A. Elek and J. Szabo, “k0-Measurements and Related Nuclear Data Comilation for (n,γ) Reactor Neutron Activation Analysis,” Journal of Radioanalytical and Nuclear Chemistry, Vol. 82, No. 2, 1984, pp. 385-452. doi:10.1007/BF02037061
[4] F. De Corte, A. Simonits, F. De Wispelaere and J. Hoste, “A Compilation of k0-Factors and Related Nuclear Data for 94 Radionuclides of Interest in NAA,” INW/KFKI Interim Report, 1986.
[5] F. De Corte, A. Simonits, A. De Wispelaere and J. Hoste, “Accuracy and Applicability of the k0-Standardization Method,” Journal of Radioanalytical and Nuclear Chemistry, Vol. 113, No. 1, 1987, pp. 145-161. doi:10.1007/BF02036056
[6] J. Op De Beek, “Critical Evaluation of the Effective Resonance Energy Concept and the Epithemal Neutron Spectrum Shape-factor α for Reactor NAA Purposes,” Journal of Radioanalytical and Nuclear Chemistry, Vol. 89, No. 1, 1985, pp. 169-190.
[7] T. V. Hung, “Determination of α Factor of Epithemal Neutron Flux in Dalat Reactor, Vietnam, Based on Neutron Spectrum Calculated Using MCNP Code,” Journal of Radioanalytical and Nuclear Chemistry, Vol. 283, No. 2, 2010, pp. 707-711. doi:10.1007/s10967-010-0457-0
[8] T. V. Hung, “Modified Method of α Determination in the 1/E1+α Epithermal Neutron Spectrum of Reactor,” Journal of Radioanalytical and Nuclear Chemistry, Vol. 285, No. 2, 2010, pp. 331-336. doi:10.1007/s10967-010-0549-x
[9] F. De Corte, L. Moens, A. Simonits, K. Sordo-el Hammami, A. De Wispelaere and J. Hoste, “The Effect of the Epithermal Neutron Flux Distribution on the Accuracy of Absolue and Comparator Standardization Method in (n,γ) Activation Analysis,” Journal of Radioanalytical and Nuclear Chemistry, Vol. 72, No. 1-2, 1982, pp. 275-286.

  
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