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<p>Monte Carlo simulation employing the GATE (Geant4 Application for Tomographic Emission) code plays a crucial role in radiation transport studies for dose calculations within computational phantoms. This paper presents a set of absorbed doses calculated using computational phantom Zubal and Monte Carlo GATE code version 9.3, based on two radiation exposure configurations: external (radiological accident) and internal (using <InlineEquation ID="IEq1"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="12194_2025_904_Article_IEq1.gif" Format="GIF" Height="16" Rendition="HTML" Resolution="72" Type="Linedraw" Width="30" /> </InlineMediaObject> <EquationSource Format="TEX">\(^{131}I\)</EquationSource> <EquationSource Format="MATHML"><math> <mrow> <mmultiscripts> <mrow /> <mrow /> <mn>131</mn> </mmultiscripts> <mi>I</mi> </mrow> </math></EquationSource> </InlineEquation> radionuclide). The results were validated through comparison with previous studies employing different Monte Carlo codes (MCNP, EGS4), and the reference female computational model proposed by ICRP report 110. The findings demonstrate good agreement between GATE results for Zubal phantom and published data with MCNP and EGS4, as well as alignment with ICRP 110 reference phantom results, for both external and internal irradiation scenarios. In addition, the comparison between Zubal and ICRP 110 phantom reveals a minimal variation, attributed to inherent anatomical and geometrical disparities.</p>

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External and internal GATE/Geant4 dosimetric calculations on voxelized phantoms

  • 期刊论文

  • 发表日期：

    2025年4月11日

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  • Merai Sondes,
  • Benrachi Fatima,
  • Laouet Nadjet

摘要

Monte Carlo simulation employing the GATE (Geant4 Application for Tomographic Emission) code plays a crucial role in radiation transport studies for dose calculations within computational phantoms. This paper presents a set of absorbed doses calculated using computational phantom Zubal and Monte Carlo GATE code version 9.3, based on two radiation exposure configurations: external (radiological accident) and internal (using \(^{131}I\) 131 I radionuclide). The results were validated through comparison with previous studies employing different Monte Carlo codes (MCNP, EGS4), and the reference female computational model proposed by ICRP report 110. The findings demonstrate good agreement between GATE results for Zubal phantom and published data with MCNP and EGS4, as well as alignment with ICRP 110 reference phantom results, for both external and internal irradiation scenarios. In addition, the comparison between Zubal and ICRP 110 phantom reveals a minimal variation, attributed to inherent anatomical and geometrical disparities.