Advanced search
Start date
Betweenand
Related content
(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

SOL-GEL alpha-Al2O3 detectors: TL and OSL response to beta radiation beams

Full text
Author(s):
Polo, Ivon Oramas [1] ; Caldas, Linda V. E. [1]
Total Authors: 2
Affiliation:
[1] IPEN CNEN, Ave Prof Lineu Prestes 2242, BR-05508000 Sao Paulo, SP - Brazil
Total Affiliations: 1
Document type: Journal article
Source: Radiation Physics and Chemistry; v. 167, FEB 2020.
Web of Science Citations: 1
Abstract

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)