Reprocessing of Irradiated [18O]H2O under the Conditions of a PET Center
| Autor: | O. V. Tugai, A. A. Ivanyukovich, V. O. Krot, I. P. Edimecheva, S. D. Brinkevich, D. I. Brinkevich |
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| Rok vydání: | 2019 |
| Předmět: |
Atmospheric pressure
Chemistry Radiochemistry Radioactive waste Human decontamination 010402 general chemistry 010403 inorganic & nuclear chemistry 01 natural sciences 0104 chemical sciences law.invention Matrix (chemical analysis) chemistry.chemical_compound law Acetone Physical and Theoretical Chemistry Acetonitrile Fluoride Distillation |
| Zdroj: | Radiochemistry. 61:483-490 |
| ISSN: | 1608-3288 1066-3622 |
| DOI: | 10.1134/s1066362219040131 |
| Popis: | The possibility of reprocessing of irradiated [18O]H2O after isolation of [18F]fluoride ion from it (regenerate) under the conditions of the cyclotron-radiochemical laboratory of an operating PET center was examined. The radionuclide and chemical composition of [18O]H2O and the degree of its enrichment in 18O before and after distillation at atmospheric pressure were studied comprehensively. The suggested method allows efficient removal of long-lived γ-emitting radionuclides (56Co, 57Co, 58Co, 65Zn, 54Mn, 51Cr) from the [18O]H2O regenerate. The distillation reduces the content of residual solvents (acetaldehyde, acetone, isopropanol, ethanol, acetonitrile), whereas the content of 3H and 18O in [18O]H2O changes within the measurement uncertainty. The distillation residues and decontamination solutions after neutralization can be jointly cemented to incorporate the γ-emitters into a compact matrix with the aim of its subsequent delivery to specialized organizations performing long-term storage and disposal of solid radioactive waste. |
| Databáze: | OpenAIRE |
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