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Evaluation of Dose Enhancement Effect of Bismuth Oxide Nanoparticles by Means of Magat and Npag Gel Dosimeters Publisher



Alyani Nezhad Z1 ; Geraily G1, 2 ; Parwaie W3 ; Hossein Nezhad E1
Authors
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Authors Affiliations
  1. 1. Department of Medical Physics and Medical Engineering, School of Medicine, Tehran University of Medical Sciences, Tehran, 1417613151, Iran
  2. 2. Radiation Oncology Research Center, Cancer Institute, Tehran University of Medical Sciences, Tehran, Iran
  3. 3. Department of Medical Physics, Faculty of Paramedical Sciences, Ilam University of Medical Sciences, Ilam, Iran

Source: Journal of Radioanalytical and Nuclear Chemistry Published:2022


Abstract

Dose enhancement factor (DEF) in the presence of heavy nanoparticles in tumors can be evaluated by irradiation of gel dosimeters impregnated with nanoparticles (NPs); however, an important issue is whether all gel dosimeters are suitable to evaluate this factor. In this study, we evaluated MAGAT and nPAG for measuring DEF of bismuth oxide nanoparticles. Results revealed that DEF decreased for gels combined with nanoparticles compared to pure gel (without nanoparticles). Hence, it can be concluded that the characteristics of nanoparticles and the components of the gel can significantly influence the possibility of using a gel dosimeter to evaluate DEF. © 2022, Akademiai Kiado, Budapest, Hungary.
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