Al 2 O 3: C optically stimulated luminescence droplets: Characterization and applications in medical beams

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Authors

Institutes & Expert groups

  • Unicamp - University of Campinas
  • VUB - Vrije Universiteit Brussel

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Abstract

Optically stimulated luminescence (OSL) detectors, which are widely used in radiation protection, offer a number of potential advantages for radiotherapy dosimetry. In this study we characterized 1-μl of OSL droplets consisting of a mixture of Al2O3:C powder and a photo-curable polymer, in addition to results described in a previous work (Nascimento et al., 2013). The concentration test showed that droplets have a higher spatial resolution than other commonly used Al2O3:C-based detectors. Our results from the dose response, reproducibility and dependence with accumulative dose were obtained for droplets with a powder/polymer concentration that showed a high Signal to Noise Ratio (SNR) without compromising the droplet malleability. Additional test results show the response of such droplets in percentage depth dose curves and dose profiles of clinical beams.

Details

Original languageEnglish
Pages (from-to)41-48
Number of pages9
JournalRadiation Measurements
Volume94
DOIs
Publication statusPublished - 30 Nov 2016

Keywords

  • Optically Stimulated Luminescence (OSL), Al2O3:C, radiotherapy, droplets

ID: 1516005