Analysis of Thorium and its Progeny by Gamma Ray Sepctrometry and Alpha Track Methods
| Autor: | L. Dinescu, A. Danis, Cincu Em, O. Sima, M. Ciubotariu, D. Matei |
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| Rok vydání: | 2001 |
| Předmět: |
Materials science
chemistry.chemical_element Calibration media_common.cataloged_instance Radiology Nuclear Medicine and imaging Gamma spectroscopy European union Radiometry media_common Radiation Radiological and Ultrasound Technology Isotope business.industry Silicates Thorium Radiochemistry Public Health Environmental and Occupational Health General Medicine Actinide Alpha Particles Spectrometry Gamma Thorium Compounds chemistry Gamma Rays Zirconium Nuclear medicine business Isotopes of thorium |
| Zdroj: | Radiation Protection Dosimetry. 97:181-186 |
| ISSN: | 1742-3406 0144-8420 |
| Popis: | Samples originating from an EU sponsored intercomparison exercise were analysed by gamma ray spectrometry (a thorium solution sample, a zircon sand sample and a thorium ore sample). An alpha track method was also used to analyse the solution sample. The detection efficiency calibration for the gamma ray spectrometry measurements on the solid samples was established using an in-house standard of thorium nitrate. A GESPECOR Monte Carlo simulation program was utilised in the analysis of the solution sample. The in-house thorium nitrate standard was also used to prepare standards for the alpha track method. The relative differences between the 232 Th activity concentration values determined in these intercomparison samples and values supplied by the NPL, UK, were found to be less than 5% when determined by the gamma ray spectrometry method and less than 8% when determined by the alpha track method. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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