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Characterization of a reusable PRESAGE® 3D dosimeter

Publication ,  Conference
Juang, T; Adamovics, J; Oldham, M
Published in: Journal of Physics: Conference Series
January 1, 2015

This study investigates a reusable PRESAGE® 3D dosimeter (Presage-RU), which would improve cost-effectiveness and facilitate wider implementation of comprehensive, high resolution 3D dosimetry. Small (1x1x4.5 cm) and large (8 cm diameter, 4.5 cm length) sample dosimeters were irradiated multiple times to characterize dose response (i.e. radiation-induced change in optical density (ΔOD)), optical clearing rate, and dose distribution stability. Presage- RU exhibited an initial dose response sensitivity of 0.0119 ΔOD/(cm-Gy), a reduction in response with subsequent irradiations, and a small, permanent ΔOD (∼1-6% of initial signal) following each irradiation. Dosimeters optically cleared at an exponential rate (average T1/2 24.8±3.6 h), and were effectively cleared after ∼5-8 days. 3D gamma analysis (3%/3mm, 10% dose threshold) of a 4-field box plan applied to the large dosimeter showed good agreement following initial irradiation (96.6% passing), but a reduction in passing rate (89.1% passing) with subsequent irradiation. Further study is warranted to fully assess and quantify the performance of Presage-RU for repeat irradiations.

Duke Scholars

Published In

Journal of Physics: Conference Series

DOI

EISSN

1742-6596

ISSN

1742-6588

Publication Date

January 1, 2015

Volume

573

Issue

1

Related Subject Headings

  • 51 Physical sciences
  • 0299 Other Physical Sciences
  • 0204 Condensed Matter Physics
  • 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
 

Citation

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Juang, T., Adamovics, J., & Oldham, M. (2015). Characterization of a reusable PRESAGE® 3D dosimeter. In Journal of Physics: Conference Series (Vol. 573). https://doi.org/10.1088/1742-6596/573/1/012039
Juang, T., J. Adamovics, and M. Oldham. “Characterization of a reusable PRESAGE® 3D dosimeter.” In Journal of Physics: Conference Series, Vol. 573, 2015. https://doi.org/10.1088/1742-6596/573/1/012039.
Juang T, Adamovics J, Oldham M. Characterization of a reusable PRESAGE® 3D dosimeter. In: Journal of Physics: Conference Series. 2015.
Juang, T., et al. “Characterization of a reusable PRESAGE® 3D dosimeter.” Journal of Physics: Conference Series, vol. 573, no. 1, 2015. Scopus, doi:10.1088/1742-6596/573/1/012039.
Juang T, Adamovics J, Oldham M. Characterization of a reusable PRESAGE® 3D dosimeter. Journal of Physics: Conference Series. 2015.
Journal cover image

Published In

Journal of Physics: Conference Series

DOI

EISSN

1742-6596

ISSN

1742-6588

Publication Date

January 1, 2015

Volume

573

Issue

1

Related Subject Headings

  • 51 Physical sciences
  • 0299 Other Physical Sciences
  • 0204 Condensed Matter Physics
  • 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics