PAGAT gel dosimeters for dose distribution measurements in the vicinity of high-density implants: A preliminary study

8th International Conference on 3D Radiation Dosimetry

Asena, A.^1 ; Kairn, T.^1,2 ; Crowe, S.B.^1 ; Smith, S.T.^1 ; Trapp, J.V.^1

School of Chemistry, Physics and Mechanical Engineering, Queensland University of Technology, Brisbane, Australia^1

Genesis CancerCare Queensland, Brisbane, Australia^2

关键词: Artefact reduction;    Dose-distribution measurement;    Gel dosimeter;    Laser lights;    Optical CT;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/573/1/012061/pdf
DOI  :  10.1088/1742-6596/573/1/012061

来源: IOP

【 摘 要 】

This work examined the suitability of the PAGAT gel dosimeter for use in dose distribution measurements around high-density implants. An assessment of the gels reactivity with various metals was performed and no corrosive effects were observed. An artefact reduction technique was also investigated in order to minimise scattering of the laser light in the optical CT scans. The potential for attenuation and backscatter measurements using this gel dosimeter were examined for a temporary tissue expander's internal magnetic port.