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http://dx.doi.org/10.7742/jksr.2021.15.2.181

A Study on the Analysis of Radiation Dose for Thermoplastic Material and 3D Print Filament Materials  

Lee, Dong-Yeon (Dongnam Institute of Radiological & Medical Sciences, Radiation Oncology)
Publication Information
Journal of the Korean Society of Radiology / v.15, no.2, 2021 , pp. 181-189 More about this Journal
Abstract
This study is a prior research to manufacture a thermoplastic mask, which is a fixture used in radiation therapy, by 3D printing. It proceeded to analyze the filament material that can replace the thermoplastic. Among the commercially available filament materials, a material having similar characteristics to that of a thermoplastic mask was selected and the radiation dose was compared and analyzed. The experiment used Monte Carlo simulation. The shape in which the mask fixed the head was simulated for the ICRU sphere. The photon fluence was calculated at the skin Hp (0.07), the lens Hp (3), and the whole body Hp (10) by applying a thermoplastic plastic material and a filament material. As a result, when looking at the relative dose based on the thermoplastic plastic material, the difference was approximated within 4%. The material showing the most similar dose was PA-nylon. In selecting an appropriate filament material, it should be selected by comprehensively considering various conditions such as economical efficiency and radiation effects. It is thought that the results of this study can be used as basic data.
Keywords
3D print; Thermoplastic; Filament; Simulation; ICRU sphere;
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Times Cited By KSCI : 3  (Citation Analysis)
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