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

Luana de Freitas Nascimento; Filip Vanhavere; Rodolfo Souza; Dirk Verellen

doi:10.1016/j.radmeas.2016.09.003

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

Luana de Freitas Nascimento, Filip Vanhavere, Rodolfo Souza, Dirk Verellen

Research output › peer-review

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.

Original language	English
Pages (from-to)	41-48
Number of pages	9
Journal	Radiation Measurements
Volume	94
DOIs	https://doi.org/10.1016/j.radmeas.2016.09.003
State	Published - 30 Nov 2016

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Cite this

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

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.",

keywords = "Optically Stimulated Luminescence (OSL), Al2O3:C, radiotherapy, droplets",

author = "{de Freitas Nascimento}, Luana and Filip Vanhavere and Rodolfo Souza and Dirk Verellen",

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AU - de Freitas Nascimento, Luana

AU - Vanhavere, Filip

AU - Souza, Rodolfo

AU - Verellen, Dirk

N1 - Score=10

PY - 2016/11/30

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N2 - 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.

AB - 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.

KW - Optically Stimulated Luminescence (OSL)

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