| Texto completo | |
| Autor(es): |
Polo, Ivon Oramas
;
Caldas, Linda V. E.
Número total de Autores: 2
|
| Tipo de documento: | Artigo Científico |
| Fonte: | Radiation Physics and Chemistry; v. 167, p. 7-pg., 2020-02-01. |
| Resumo | |
The dosimetric properties of the SOL-GEL alpha-Al2O3 detectors with several different concentrations of impurities were studied in beta radiation beams. For the characterization of the detectors, the TL and OSL techniques were used. A TL spectrum was acquired. The detectors showed adequate OSL and TL dosimetric characteristics, such as good reproducibility, a glow curve with the peak at similar to 230 degrees C at 5 degrees C/s of heating rate, adequate OSL decay curve, good linearity of response and high phosphor sensitivity. A thermal treatment study was also performed. Moreover, the calibration factors and the lower detection limits were determined for beta radiation. These characteristics indicate the suitability of SOL-GEL alpha-Al2O3 detectors for the establishment of a transfer system or alternative/complementary method for beta radiation dosimetry. (AU) | |
| Processo FAPESP: | 08/57863-2 - P&D em metrologia das radiações |
| Beneficiário: | Linda Viola Ehlin Caldas |
| Modalidade de apoio: | Auxílio à Pesquisa - Temático |