Abstract
89Zr is a beta plus and electron capture decaying radionuclide. This paper presents: (1) Absolute standardization by the 4πβ(PC)-γ coincidence method: a new equivalent decay scheme, the mathematical formalism applied to it and the choice of the optimal measurement conditions. (2) Measurements by HPGe gamma-ray spectrometry, to determine the possible impurities, to measure the activity and the relative intensities of the emitted gamma rays. (3) Calibration of the CENTRONIC IG12/20A ionization chamber, by two methods: direct measurement using the absolutely standardized solution and linear least square modelling, as well as their comparison. (4) Comparisons of results of all measurement methods.
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Acknowledgements
This paper was funded by the joint research project IFA Romania – CEA France No. C5-09/2016
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Sahagia, M., Luca, A., Antohe, A. et al. Standardization of the emerging medical positron emitter 89Zr. J Radioanal Nucl Chem 322, 1683–1689 (2019). https://doi.org/10.1007/s10967-019-06661-z
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DOI: https://doi.org/10.1007/s10967-019-06661-z
Keywords
- Positron emitter 89Zr
- Absolute standardization
- 4πβ(PC)-γ coincidence method
- Gamma-ray spectrometry measurement
- Calibration of the ionization chamber
- Comparison of results