Abstract
The present study reports on the performance of three reactor-produced radionuclides (24Na, 56Mn, and 72Ga) and one accelerator-produced radionuclide (56Co) for extending the full-energy peak efficiency calibration of a coaxial HPGe detector up to ~ 3100 keV at different detector to source distances. The differences between the efficiency curves obtained with and without the use of high-energy gamma emitters radionuclides have a considerable impact on the accuracy of the Na, Ca, and S determination by the k0-INAA as evidenced by analysis results of reference materials. The results revealed that 24Na is the most suitable radionuclide for high-energy efficiency calibration due to its reasonable availability, low production cost, simple decay scheme, and well-defined decay properties.
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Acknowledgements
This work was partially supported by collaboration research project of Integrated Radiation and Nuclear Science, Kyoto University (KURNS) (No. 31138). The 56Co was supplied through Supply Platform of Short-lived Radioisotopes, supported by JSPS Grant-in-Aid for Scientific Research on Innovative Areas, Grant Number 16H06278.
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Soliman, M., Mindil, A. & Takamiya, K. Utilization of different radionuclides for high-energy extended efficiency calibration of a HPGe for improved determination of calcium and sulfur using k0-INAA. J Radioanal Nucl Chem 332, 1687–1693 (2023). https://doi.org/10.1007/s10967-023-08859-8
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DOI: https://doi.org/10.1007/s10967-023-08859-8