Evaluation of the effect of mechanical deformation on beam isocenter properties of the SC200 scanning beam delivery system
文献类型：期刊论文
| 作者 | Wang, Ming1,2; Zheng, Jinxing1 ; Song, Yuntao1,2; Li, Ming1,2; Zeng, Xianhu1,2
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| 刊名 | NUCLEAR ENGINEERING AND TECHNOLOGY
 |
| 出版日期 | 2020-09-01 |
| 卷号 | 52 |
| 关键词 | SC200 Proton therapy PBS nozzle Gantry Beam isocenter properties |
| ISSN号 | 1738-5733 |
| DOI | 10.1016/j.net.2020.02.012 |
| 通讯作者 | Zheng, Jinxing(jxzheng@ipp.ac.cn) |
| 英文摘要 | For proton pencil beam scanning (PBS) technology, the accuracy of the dose distribution in a patient is sensitive to the properties of the incident beam. However, mechanical deformation of the proton therapy facility may occur, and this could be an important factor affecting the proton dose distribution in patients. In this paper, we investigated the effect of deformation on an SC200 proton facility's beam isocenter properties. First, mechanical deformation of the PBS nozzle, L-shape plate, and gantry were simulated using a Finite Element code, ANSYS. Then, the impact of the mechanical deformation on the beam's isocenter properties was evaluated using empirical formulas. In addition, we considered the simplest case that could affect the properties of the incident beam (i.e. if only the bending magnet (BG3) has an error in its mounting alignment), and the effect of the beam optics offset on the isocenter characteristics was evaluated. The results showed that the deformation of the beam position in the X and Y direction was less than 0.27 mm, which meets the structural design requirements. Compared to the mechanical deformation of the L-shape plate, the deformation of the gantry had more influence on the beam's isocenter properties. When the error in the mounting alignment of the BG3 is equal to or more than 0.3 mm, the beam deformation at the isocenter exceeds the maximum accepted deformation limits. Generally speaking, for the current design of the SC200 scanning beam delivery system, the effects of mechanical deformation meet the maximum accepted beam deformation limits. In order to further study the effect of the incident beam optics on the isocenter properties, a fine-scale Monte Carlo model including factors relating to the PBS nozzle and the BG3 should be developed in future research. (C) 2020 Korean Nuclear Society, Published by Elsevier Korea LLC. |
| WOS关键词 | PROTON THERAPY ; PHOTON ; DOSIMETRY |
| 资助项目 | Important Science & Technology Specific Projects of Anhui[1703081003] |
| WOS研究方向 | Nuclear Science & Technology |
| 语种 | 英语 |
| WOS记录号 | WOS:000555789300006 |
| 出版者 | KOREAN NUCLEAR SOC |
| 资助机构 | Important Science & Technology Specific Projects of Anhui |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/45004]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Zheng, Jinxing |
| 作者单位 | 1.Chinese Acad Sci, Inst Plasma Phys, Hefei, Anhui, Peoples R China 2.Univ Sci & Technol China, Hefei, Anhui, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Ming,Zheng, Jinxing,Song, Yuntao,et al. Evaluation of the effect of mechanical deformation on beam isocenter properties of the SC200 scanning beam delivery system[J]. NUCLEAR ENGINEERING AND TECHNOLOGY,2020,52. |
| APA | Wang, Ming,Zheng, Jinxing,Song, Yuntao,Li, Ming,&Zeng, Xianhu.(2020).Evaluation of the effect of mechanical deformation on beam isocenter properties of the SC200 scanning beam delivery system.NUCLEAR ENGINEERING AND TECHNOLOGY,52. |
| MLA | Wang, Ming,et al."Evaluation of the effect of mechanical deformation on beam isocenter properties of the SC200 scanning beam delivery system".NUCLEAR ENGINEERING AND TECHNOLOGY 52(2020). |
入库方式： OAI收割
来源：合肥物质科学研究院
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