Self-characterization of irradiation facility using synthetic multi-element standard for determination of k0-factors of seven radionuclides of interest
Main Article Content
Abstract
In this study, the k0 factors of seven short and medium-lived radionuclides (i.e. 66Cu, 52V, 38Cl, 134mCs, 128I, 140La, and 56Mn) were experimentally determined at the Dalat nuclear research reactor (DNRR). The synthetic multi-element standard (SMELS) samples were irradiated at channel 7-1 of the DNRR. SMELS Type III contains Au and Zr, thus it allows the self-characterization of the irradiation facility (i.e. the direct determination of f and a with only this material). The k0 factors of seven short and medium-lived radionuclides obtained in this work are in good agreement with the reference k0 factors. The ratio values between the experiment and reference k0 values were 66Cu of 1.004, 52V of 1.004, 38Cl of 0.961 and 0.976 (1642.7 keV and 2167.4 keV, respectively), 134mCs of 0.831, 128I of 1.022, 140La of 0.936, 0.955 and 0.955 (328.8 keV, 487.0 keV and 1596.2 keV, respectively), and 56Mn of 0.985 and 0.973 (846.8 keV and 1810.7 keV, respectively). The difference of k0 values between the experiment and the reference for the above radionuclides were lower than 7%. The present result indicates that the k0 factors can be determined by using the SMELS materials.
Article Details
Keywords
k0 factor, neutron activation analysis, short-lived and medium-lived radionuclides
References
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