Disassembly of old radium sources and conversion of radium sulfate into radium carbonate for subsequent dissolution in acid
| Autor: | Gunnar Skarnemark, Mikhail S. Tyumentsev, Artem V. Matyskin, Christian Ekberg, Burçak Ebin, Henrik Ramebäck, Stefan Allard |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
chemistry.chemical_classification
Aqueous solution Chemistry Coprecipitation Health Toxicology and Mutagenesis Radiochemistry Public Health Environmental and Occupational Health Mineral acid chemistry.chemical_element 010402 general chemistry 010403 inorganic & nuclear chemistry 01 natural sciences Pollution 0104 chemical sciences Analytical Chemistry Radium chemistry.chemical_compound Nuclear Energy and Engineering Carbonate Radiology Nuclear Medicine and imaging Sulfate Dissolution Spectroscopy Nuclear chemistry |
| Zdroj: | Journal of Radioanalytical and Nuclear Chemistry. 310:589-595 |
| ISSN: | 1588-2780 0236-5731 |
| DOI: | 10.1007/s10967-016-4927-x |
| Popis: | In this work details of safe radium source disassembly which were previously used in brachytherapy are described and different methods for conversion of RaSO4 into aqueous solution are reviewed. The method of choice included three cycles of RaSO4 heating in 1.5 M Na2CO3 up to 85 °C, cooling and subsequent removal of supernatant. X-ray diffraction study showed that the method allows the synthesis of, presumably, amorphous RaCO3, which can be dissolved in mineral acid. Gamma spectrometric measurements showed that most of the initial RaSO4 was converted into solution and that 7 ± 1 % of the initial 210Pb was co-precipitated with RaCO3. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|