3D dose verification with polymer gel detectors of brain-spine match line for proton pencil beam cranio-spinal: A preliminary study

8th International Conference on 3D Radiation Dosimetry

Avery, S.^1 ; Cardin, A.^1 ; Lin, L.^1 ; Kirk, M.^1 ; Kassaee, A.^1 ; Maryanski, M.J.^2

Department of Radiation Oncology, University of Pennsylvania Medical Center, Philadelphia

PA, United States^1

MGS Research, Inc., Madison

CT

06443, United States^2

关键词: Baseline measurements;    Bragg peaks;    Dose dependences;    Dose verification;    Pencil beam;    Polymer gels;    Proton therapy;    Three dimensions;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/573/1/012020/pdf
DOI  :  10.1088/1742-6596/573/1/012020

来源: IOP

【 摘 要 】

This paper is intended as a preliminary study to demonstrate the quality assurance benefits from polymer gel detectors for proton pencil beam cranio-spinal treatments. A stable gel type was selected for protons to suppress the LET dependence at the end of the Bragg peak. The depth dose distributions in the gels were examined with regard of its dose dependences and compared to baseline measurements. The preliminary experimental results indicate polymer gel detectors may be able to verify dose in three dimensions along match line for proton therapy treatments.