Alignment of heavy ion therapy center vertical terminal

被引：1

作者：

Chen, Wenjun ^{[1
,2
,3
]}

Yang, Yaqing ^{[1
,3
]}

Cai, Guozhu ^{[1
]}

Zheng, Yajun ^{[1
]}

Wang, Shaoming ^{[1
]}

Yuan, Jiandong ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Modern Phys, Lanzhou, Gansu, Peoples R China

[2] Univ Chinese Acad Sci, Sch Nucl Sci & Technol, Beijing, Peoples R China

[3] Huizhou Res Ctr Ion Sci, Huizhou, Peoples R China

来源：

RADIATION EFFECTS AND DEFECTS IN SOLIDS | 2019年 / 174卷 / 9-10期

关键词：

Heavy ion therapy; 3D surveying control network; laser tracker; alignment; coordinate transformation; RADIOTHERAPY;

D O I：

10.1080/10420150.2019.1658109

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

Wuwei heavy ion therapy center is the first Chinese heavy ion accelerator facility developed for cancer therapy, in which four terminals are distributed and the height of the vertical terminal is up to 18 m. Installation units of vertical terminal are diverse and complex, moreover, these units present poor alignment visibility. Thereby, it is difficult to perform the alignment among these components. Based on the laser tracker and high precision three-dimensional surveying control network, this paper proposes an efficient alignment method using multiple conversion of magnet fiducial data and pre-alignment of complex magnet unit. All the components are successfully aligned, and meanwhile the installation efficiency of vertical terminals is improved. Alignment accuracy of magnets is less than 0.1 mm. Error analysis presents that this alignment method achieves its goal.

引用

页码：809 / 818

页数：10

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