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Disintegration rate measurement of a 152Eu solution
Marina F Koskinas1, Kátia A Fonseca, Mauro S Dias
1Instituto de Pesquisas Energéticas e Nucleares (IPEN-CNEN/SP), Laboratório de Metrologia Nuclear-Centro do Reator de Pesquisas-CRPq, São Paulo, SP, Brazil.
Summary
This study details the standardization of Europium-152 (152Eu) using advanced nuclear metrology techniques. The precise measurement of 152Eu
Area of Science:
- Nuclear Metrology
- Radioactivity Measurement
Background:
- Accurate standardization of radionuclides is crucial for various applications.
- Europium-152 (152Eu) is a widely used gamma-ray emitting radionuclide for calibration and research.
Purpose of the Study:
- To describe the nuclear metrology procedure for the standardization of 152Eu.
- To determine the disintegration rate of 152Eu using the 4π beta-gamma coincidence technique.
Main Methods:
- Utilized a 4π proportional counter filled with P-10 gas and an HPGe detector.
- Employed the 4π beta-gamma coincidence technique for disintegration rate measurement.
- Set specific gamma-channel discrimination windows (344 keV and 1408.03 keV) to determine counting efficiencies.
Main Results:
- Successfully measured the disintegration rate of 152Eu.
- Determined counting efficiencies for beta, X-ray, and Auger electron events.
- Activity of the 152Eu solution was accurately determined using biparametric extrapolation curves.
Conclusions:
- The described procedure provides a reliable method for 152Eu standardization.
- The application of the 4π beta-gamma coincidence technique with specific discrimination windows ensures accurate activity determination.