Accounting for Overcounting Induced by 222Rn Contamination in 14C Measurements Performed with Liquid Scintillation Counting

• Autorzy: Jędrzejowski Maksymilian , Michczyńska Danuta J. , Michczyński Adam , Kłusek Marzena , Tudyka Konrad

Identyfikatory

DOI

10.2478/geochr-2023-0007

• Języki publikacji: EN

Abstrakty

EN

This research paper introduces a methodology for estimating overcounting resulting from uranium series radionuclides, with a specific focus on 222Rn contamination. The method is demonstrated using the Quantulus 1220TM spectrometer. Exponential fitting is employed for the calculations, utilizing a custom algorithm developed in MATLAB® R2022b. The proposed method allows for the determination of the sample count rate correction, F14C and radiocarbon age without the need for additional chemical treatment or specialized electronics during liquid scintillation counting (LSC) measurements with the Quantulus 1220TM spectrometer. However, the method does have certain limitations. It requires a significant number of cycles and extended measurement time per cycle, but it can be applied to samples with significant 222Rn contamination that require rapid 14C analysis.

Słowa kluczowe

EN

overcounting estimation; uranium series radionuclides; 222Rn contamination; Quantulus 1220TM spectrometer; exponential fitting; liquid scintillation counting

• Wydawca: Politechnika Śląska
• Czasopismo: Geochronometria
• Rocznik: 2023
• Tom: Vol. 50, no. 1
• Strony: 91--99
• Opis fizyczny: Bibliogr. 26 poz., rys., tab.

Twórcy

autor

Jędrzejowski Maksymilian

• Institute of Physics – Centre for Science and Education, Division of Geochronology and Environmental Isotopes, Silesian University of Technology, 44-100, Gliwice, Poland

autor

Michczyńska Danuta J.

• Institute of Physics – Centre for Science and Education, Division of Geochronology and Environmental Isotopes, Silesian University of Technology, 44-100, Gliwice, Poland

autor

Michczyński Adam

• Institute of Physics – Centre for Science and Education, Division of Geochronology and Environmental Isotopes, Silesian University of Technology, 44-100, Gliwice, Poland

autor

Kłusek Marzena

• Institute of Physics – Centre for Science and Education, Division of Geochronology and Environmental Isotopes, Silesian University of Technology, 44-100, Gliwice, Poland

autor

Tudyka Konrad

• Institute of Physics – Centre for Science and Education, Division of Geochronology and Environmental Isotopes, Silesian University of Technology, 44-100, Gliwice, Poland

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