External and internal GATE/Geant4 dosimetric calculations on voxelized phantoms.

IF 1.7 Q3 RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING

Radiological Physics and Technology Pub Date : 2025-06-01 Epub Date: 2025-04-11 DOI:10.1007/s12194-025-00904-3

Merai Sondes, Benrachi Fatima, Laouet Nadjet

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Abstract

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 $^{131} I$ 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.

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体素化幻影的外部和内部GATE/Geant4剂量学计算。

采用GATE （Geant4应用于层析发射）代码的蒙特卡罗模拟在计算幻影内剂量计算的辐射输运研究中起着至关重要的作用。本文提出了一套吸收剂量计算使用计算幻影祖巴尔和蒙特卡罗门代码版本9.3，基于两种辐射暴露配置：外部（放射性事故）和内部（使用131 I放射性核素）。通过与先前使用不同蒙特卡罗代码（MCNP、EGS4）的研究以及ICRP报告110中提出的参考女性计算模型进行比较，验证了结果。研究结果表明，在外部和内部照射情况下，GATE研究结果与MCNP和EGS4已发表的数据一致，并且与ICRP 110参考模型结果一致。此外，Zubal和ICRP 110幻影之间的比较显示了最小的变化，归因于固有的解剖和几何差异。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Radiological Physics and Technology RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING-

CiteScore

3.00

自引率

12.50%

发文量

期刊介绍： The purpose of the journal Radiological Physics and Technology is to provide a forum for sharing new knowledge related to research and development in radiological science and technology, including medical physics and radiological technology in diagnostic radiology, nuclear medicine, and radiation therapy among many other radiological disciplines, as well as to contribute to progress and improvement in medical practice and patient health care.