A preliminary Monte Carlo study for the treatment head of a carbon-ion radiotherapy facility using TOPAS
文献类型:会议论文
作者 | Liu, Hongdong1; Zhang, Lian1; Chen, Zhi1; Liu, Xinguo2; Dai, Zhongying2; Li, Qiang2; Xu, Xie George1,3; Malvagi, F; Malouch, F; Diop, CMB |
出版日期 | 2017 |
卷号 | 153 |
DOI | 10.1051/epjconf/201715304018 |
英文摘要 | In medical physics it is desirable to have a Monte Carlo code that is less complex, reliable yet flexible for dose verification, optimization, and component design. TOPAS is a newly developed Monte Carlo simulation tool which combines extensive radiation physics libraries available in Geant4 code, easy-to-use geometry and support for visualization. Although TOPAS has been widely tested and verified in simulations of proton therapy, there has been no reported application for carbon ion therapy. To evaluate the feasibility and accuracy of TOPAS simulations for carbon ion therapy, a licensed TOPAS code (version 3Op1) was used to carry out a dosimetric study of therapeutic carbon ions. Results of depth dose profile based on different physics models have been obtained and compared with the measurements. It is found that the G4QMD model is at least as accurate as the TOPAS default BIC physics model for carbon ions, but when the energy is increased to relatively high levels such as 400 MeV/u, the G4QMD model shows preferable performance. Also, simulations of special components used in the treatment head at the Institute of Modern Physics facility was conducted to investigate the Spread-Out dose distribution in water. The physical dose in water of SOBP was found to be consistent with the aim of the 6 cm ridge filter. |
会议录 | ICRS-13 & RPSD-2016, 13TH INTERNATIONAL CONFERENCE ON RADIATION SHIELDING & 19TH TOPICAL MEETING OF THE RADIATION PROTECTION AND SHIELDING DIVISION OF THE AMERICAN NUCLEAR SOCIETY - 2016 |
会议录出版者 | E D P SCIENCES |
会议录出版地 | 17 AVE DU HOGGAR PARC D ACTIVITES COUTABOEUF BP 112, F-91944 CEDEX A, FRANCE |
语种 | 英语 |
资助项目 | NSFC (Natural Science Foundation of China)[11575180] |
WOS研究方向 | Nuclear Science & Technology ; Radiology, Nuclear Medicine & Medical Imaging |
WOS记录号 | WOS:000426429200073 |
源URL | [http://119.78.100.186/handle/113462/58367] |
专题 | 中国科学院近代物理研究所 |
通讯作者 | Xu, Xie George |
作者单位 | 1.Univ Sci & Technol China Hefei, Sch Nucl Sci & Technol, Hefei 230027, Anhui, Peoples R China 2.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Gansu, Peoples R China 3.Rensselaer Polytech Inst, Troy, NY 12180 USA |
推荐引用方式 GB/T 7714 | Liu, Hongdong,Zhang, Lian,Chen, Zhi,et al. A preliminary Monte Carlo study for the treatment head of a carbon-ion radiotherapy facility using TOPAS[C]. 见:. |
入库方式: OAI收割
来源:近代物理研究所
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