Determination of fractional electron capture probabilities using Metallic Magnetic Calorimeters
Résumé
The measurements are the part of the European metrology research project MetroMMC, which started in 2018 for a duration of 3 years. This project concerns the development and use of MMC detectors and complementary detection techniques to understand the electron capture (EC) process in the decay and subsequent atomic relaxation processes in a few selected atomic nuclei. The goals of MetroMMC include:
• Measurement of fractional electron capture probabilities and absolute X-ray emission intensities.
• To improve theoretical models and calculations of the electron capture process and subsequent atomic relaxation.
• Validation of the theoretical data with the high-precision experimental data from this project.
• Six radionuclides that decay by EC have been selected for measurement within the project: Ca-41, Mn-54, Ni-59, Zn-65, Cd-109 and I-125.
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