Determination of the effective atomic number of thick samples of unknown composition using scattering studies
| Autor: | C. D. Athrey, B. M. Sankarshan, T. K. Umesh |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Physics
Scattering General Physics and Astronomy Electron Composition (combinatorics) 010403 inorganic & nuclear chemistry Intensity ratio 01 natural sciences 030218 nuclear medicine & medical imaging 0104 chemical sciences 03 medical and health sciences 0302 clinical medicine Reference sample Atomic physics Effective atomic number |
| Zdroj: | The European Physical Journal Plus. 132 |
| ISSN: | 2190-5444 |
| DOI: | 10.1140/epjp/i2017-11553-2 |
| Popis: | The effective atomic number ( $ Z_{\rm eff}$ is a quantity which gives the fraction of the total number of electrons in a composite material participating in the photon-atom interaction. The effective atomic number has been determined for the materials of known composition by using different methods. However, no method has been reported so far to determine $ Z_{\rm eff}$ for thick samples of unknown composition. In view of this, we have evolved a simple method to determine the effective atomic number, which uses the scattering intensity ratios measured at two scattering angles, in which a sample of known $ Z_{\rm eff}$ or Z is taken as a reference sample. The values of $ Z_{\rm eff}$ obtained by this method agree with those obtained from the Auto-Zeff software within the stated errors. This method could be helpful in determining the effective atomic number of samples of unknown composition. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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