Original Article

Investigation of Auger Electron Emitting Radionuclides Effects in Therapy Using the Geant4-DNA Toolkit: A Simulation Study

Abstract

Purpose: The biological effects of ionizing radiation at the cellular and subcellular scales are studied by the number of breaks in the DNA molecule that provides a quantitative description of the stochastic aspects of energy deposition at cellular scales. The Geant4 code represents a suitable theoretical toolkit in microdosimetry and nanodosimetry. In this study, radiation effects due to Auger electrons emitting radionuclides such as   , ,  and are investigated using the Geant4-DNA.

Materials and Methods: The Geant4-DNA is the first Open-access software for the simulation of ionizing radiation and biological damage at the DNA scale. Low-energy electrons, especially Auger electron from Auger electron emitting radionuclides during the slowing-down process, deposit their energy within a nanometer volume.

Results: The average number of Single-Strand Breaks (SSB) and Double-Strand Breaks (DSB) of DNA as a function of energy and distance from the center of the DNA axis are shown.

Conclusion: The highest DSBs yield has occurred at energies less than 1 keV, and  induces a higher DSBs yield.

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IssueVol 8 No 2 (2021) QRcode
SectionOriginal Article(s)
DOI https://doi.org/10.18502/fbt.v8i2.6511
Keywords
Geant4-DNA Auger Electron Double-Strand Break Single-Strand Break Radionuclide Targeted Therapy

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1.
Ahmadi P, Shamsaei Zafar Ghandi M, Shokri A. Investigation of Auger Electron Emitting Radionuclides Effects in Therapy Using the Geant4-DNA Toolkit: A Simulation Study. Frontiers Biomed Technol. 2021;8(2):79-86.