Article
Efficiency calibration and optimization of a liquid scintillation spectrometer for low level 55Fe and 63Ni measurements
Author/s | García León, José Luis
García León, Manuel Manjón Collado, Guillermo |
Department | Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear Universidad de Sevilla. Departamento de Física Aplicada II |
Publication Date | 2023-11 |
Deposit Date | 2024-02-22 |
Published in |
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Abstract | An experimental study on the counting efficiency, background, and Lower Limit of Detection (LLD) of a liquid scintillation spectrometer was carried out for establishing a measurement technique suitable for low level activity ... An experimental study on the counting efficiency, background, and Lower Limit of Detection (LLD) of a liquid scintillation spectrometer was carried out for establishing a measurement technique suitable for low level activity measurements of 55Fe and 63Ni in environmental samples. The spectrometer's response, using two scintillators (PerkinElmer Optiphase Hisafe 3 and Meridian Prosafe HC+) and glass and plastic vials, was studied. Colour and chemical quenching effects were also investigated for both scintillators and vials. Finally, a spectrum integration window selection method able to reduce the LLD through a Figure of Merit (FOM) optimization, was tested. Efficiency and LLD curves were obtained for both scintillators and types of vials with this technique. |
Funding agencies | Universidad de Sevilla Consejo de Seguridad Nuclear |
Citation | García León, J.L., García León, M. y Manjón Collado, G. (2023). Efficiency calibration and optimization of a liquid scintillation spectrometer for low level 55Fe and 63Ni measurements. Radiation Physics and Chemistry, 212 (111176). https://doi.org/10.1016/j.radphyschem.2023.111176. |
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