Investigation of 3D dosimetry for an anthropomorphic spine phantom

7th International Conference on 3D Radiation Dosimetry

Grant, R.^1,2 ; Ibbott, G.^1 ; Yang, J.^1 ; Adamovics, J.^3 ; Followill, D.^1

Department of Radiation Physics, University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd., Houston, TX 77030, United States^1

University of Texas at Houston, Graduate School of Biomedical Sciences, Houston, TX 77030, United States^2

Heuris Pharma, LLC, 412 Sunset Rd., Skillman, NJ 08558, United States^3

关键词: 3d dosimeters;    Clinical environments;    Dose distributions;    Dose-volume histograms;    Radiochromic film;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/444/1/012020/pdf
DOI  :  10.1088/1742-6596/444/1/012020

来源: IOP

【 摘 要 】

A new dosimetry insert for the Radiological Physics Center's spine phantom was designed to hold a specially molded dosimeter. The phantom was irradiated with the traditional insert loaded with radiochromic film and TLD, and then with the new 3D dosimetry insert. A comparison with the calculated dose distribution showed that PRESAGE® dosimeter, as well as the film and TLD system, agreed to within ±2mm. Further analysis of the 3D dosimeter, including a measured dose volume histogram, demonstrated the advantages of 3D dosimetry in a clinical environment.