Analysis of 161Tb by radiochemical separation and liquid scintillation counting
| Autor: | Judah I. Friese, Brienne N. Seiner, Leah M. Arrigo, J. Jiang, Z. S. Finch, Lawrence R. Greenwood, A. V. Davies |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Radiation
Spectrometer Counting efficiency Radiochemistry Liquid scintillation counting Analytical chemistry chemistry.chemical_element Fission product yield Standard solution Uranium 010403 inorganic & nuclear chemistry Mass spectrometry 01 natural sciences Neutron temperature 030218 nuclear medicine & medical imaging 0104 chemical sciences 03 medical and health sciences 0302 clinical medicine chemistry |
| Zdroj: | Applied Radiation and Isotopes. 170:107298 |
| ISSN: | 0969-8043 |
| DOI: | 10.1016/j.apradiso.2015.12.004 |
| Popis: | The determination of 161Tb activity is problematic due to its very low fission yield, short half-life, and the complication of its gamma spectrum. At AWE, radiochemically purified 161Tb solution was measured on a PerkinElmer 1220 QuantulusTM Liquid Scintillation Spectrometer. Since there was no 161Tb certified standard solution available commercially, the counting efficiency was determined by the CIEMAT/NIST Efficiency Tracing method. The method was validated during a recent inter-laboratory comparison exercise involving the analysis of a uranium sample irradiated with thermal neutrons. The measured 161Tb result was in excellent agreement with the result using gamma spectrometry and the result obtained by Pacific Northwest National Laboratory. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect