Minimum Detectable Activity in gamma spectrometry and its use in low level activity measurements
| Autor: | Ioan Mr, Done L |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
Anthropogenic radionuclides
Radionuclide Radiation 010308 nuclear & particles physics Gamma ray Analytical chemistry chemistry.chemical_element High resolution Level activity Germanium 010403 inorganic & nuclear chemistry Mass spectrometry 01 natural sciences 0104 chemical sciences Semiconductor detector chemistry 0103 physical sciences |
| Zdroj: | Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine. 114 |
| ISSN: | 1872-9800 |
| Popis: | In this paper there are described three different algorithms of Minimum Detectable Activity (MDA) calculus, and its use in high resolution gamma spectrometry. In the first part, few introductive theoretical aspects related to the MDA are presented. Further, the theory was applied to real gamma rays spectrometry measurements and the results were compared with the activities reference values. Two different gamma spectrometry systems, both of them using High Purity Germanium (HPGe) detectors, but having different efficiencies, were used. Samples having different geometries and radionuclides content were measured. The measured samples were made by dissolving of some acids containing anthropogenic radionuclides in water, obtaining a density of 1g/cm(3). Choosing this type of matrix was done because of its high homogeneity. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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