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| Main Author: | |
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| Format: | Artículo científico |
| Language: | en |
| Published: |
Sociedade Brasileira de Proteção Radiológica - SBPR
2019
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| Subjects: | |
| Online Access: | https://www.redalyc.org/articulo.oa?id=722280838017 |
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Table of Contents:
- Portable grazing exit X-ray fluorescence system using a low-power X-ray tube Ramon Silva dos Santos Davi Ferreira de Oliveira Joaquim Teixeira de Assis Marcelino José dos Anjos Biología GE XRF Portable system Trace element analysis This work presents the development of a portable grazing exit X-ray fluorescence (GE-XRF) system (geometric 90° - 0°) that can be applied in several areas of science and technology. The portable GE-XRF system employs a mini lowpower (anode of Au) X-ray tube, a SiPIN detector and quartz-disc reflectors as sample support (sample carrier). The grazing exit angle was experimentally determined by measuring with a cooper solution (10 μg.g-1 ). The accuracy of the system was checked using a multielement reference solution as standard reference material. Relative error between measured and reference values ranged from 4 to 19%. Initial results showed that the background was drastically reduced at grazing exit angles, thus enabling trace element analysis. The portable GE-XRF system proved to be stable and reproducible. The present work shows that it is possible to produce a portable, compact, efficient and low-cost grazing exit X-ray fluorescence system with easy-to-handle instrumentation using a low-power X-ray tube and a compact SiPIN detector. 2019 artículo científico 2319-0612 https://www.redalyc.org/articulo.oa?id=722280838017 en http://www.redalyc.org/revista.oa?id=7222 Brazilian Journal of Radiation Sciences application/pdf Sociedade Brasileira de Proteção Radiológica - SBPR Brazilian Journal of Radiation Sciences (Brasil) Num.2A Vol.7