| Autor: |
Ramon Silva dos Santos, Davi Ferreira de Oliveira, Joaquim Teixeira de Assis, Marcelino José dos Anjos |
| Jazyk: |
English<br />Portuguese |
| Rok vydání: |
2019 |
| Předmět: |
|
| Zdroj: |
Brazilian Journal of Radiation Sciences, Vol 7, Iss 2A (2019) |
| Druh dokumentu: |
article |
| ISSN: |
2319-0612 |
| DOI: |
10.15392/bjrs.v7i2A.714 |
| Popis: |
In this work was developed a portable system of grazing exit X-ray fluorescence (geometric 90° - 0°) that can be applied in several areas science and technology. GE-XRF portable system is formed by a mini X-ray tube of low power (anode of Au) and a SiPIN detector. The reflectors used as sample support (sampler carrier) were quartz discs. The grazing exit angle was experimentally determined by measuring a cooper solution (10 μg.g-1). The accuracy of the system was checked using multielement reference solution as standard reference material. The relative errors between measured and certified values are in the range of 4 to 19%. The first results showed a background was drastically reduced at grazing exit angles, enabling trace elemental analysis. The system of GE-XRF proved to be quite stable and reproducible. This paper shows that it is possible to produce a portable system of grazing exit X-ray fluorescence compact, efficient, low-cost and easy-to-handle instrumentation using a low power X-ray tube and a SiPIN compact detector. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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