FlexyDos3D

a deformable anthropomorphic 3D radiation dosimeter: Radiation properties

Y. De Deene, P. S. Skyt, R. Hil, J. T. Booth

Research output: Contribution to journalArticle

38 Citations (Scopus)

Abstract

Three dimensional radiation dosimetry has received growing interest with the implementation of highly conformal radiotherapy treatments. The radiotherapy community faces new challenges with the commissioning of image guided and image gated radiotherapy treatments (IGRT) and deformable image registration software. A new three dimensional anthropomorphically shaped flexible dosimeter, further called 'FlexyDos3D', has been constructed and a new fast optical scanning method has been implemented that enables scanning of irregular shaped dosimeters. The FlexyDos3D phantom can be actuated and deformed during the actual treatment. FlexyDos3D offers the additional advantage that it is easy to fabricate, is non-toxic and can be molded in an arbitrary shape with high geometrical precision. The dosimeter formulation has been optimized in terms of dose sensitivity. The influence of the casting material and oxygen concentration has also been investigated. The radiophysical properties of this new dosimeter are discussed including stability, spatial integrity, temperature dependence of the dosimeter during radiation, readout and storage, dose rate dependence and tissue equivalence.

Original languageEnglish
Pages (from-to)1543-1563
Number of pages21
JournalPhysics in Medicine and Biology
Volume60
Issue number4
DOIs
Publication statusPublished - 21 Feb 2015

Keywords

  • 3D radiation dosimetry
  • deformable dosimeter
  • gel dosimetry

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