Determination of the gamma and X-ray emission intensities of erbium-169
| Autor: | Claude Bailat, Zeynep Talip, François Bochud, Frédéric Juget, Nicholas P. van der Meulen, M. Teresa Durán, J. Ulrich, T. Buchillier, Youcef Nedjadi |
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| Rok vydání: | 2021 |
| Předmět: |
Radiation
Materials science Spectrometer Astrophysics::High Energy Astrophysical Phenomena Monte Carlo method X-ray chemistry.chemical_element Germanium 010403 inorganic & nuclear chemistry 01 natural sciences 030218 nuclear medicine & medical imaging 0104 chemical sciences 03 medical and health sciences 0302 clinical medicine Erbium-169 chemistry Reference values Atomic physics Gamma ray spectrometry Line (formation) |
| Zdroj: | Applied Radiation and Isotopes. 176:109823 |
| ISSN: | 0969-8043 |
| DOI: | 10.1016/j.apradiso.2021.109823 |
| Popis: | The gamma and X-ray emission intensities of 169Er were determined using radionuclidically pure 169Er. The activity of the 169Er source was standardized by the triple-to-double-coincidence ratio technique. Three independent measurements were performed to measure the emission intensities using calibrated high-purity germanium spectrometers. The efficiencies were computed with the Monte Carlo method and validated using several experimental measurements. Final results present a large uncertainty reduction compared to previous evaluations. The emission intensities per decay of 169Er are reported as 1.401(40).10−5 for the 109.8 keV line and 1.513(19).10−6 for the 118.2 keV line. The values obtained for the X-ray lines show large discrepancies with the reference values. |
| Databáze: | OpenAIRE |
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