Alignment techniques for DRAGON-I LIA

• Published in: Chinese physics C Vol. 33; no. 9; pp. 789 - 791
• Main Author: 代志勇 谢宇彤 李洪 章文卫 刘云龙 潘海峰 章林文 邓建军
• Format: Journal Article
• Language: English
• Published: IOP Publishing 01.09.2009; Institute of Fluid Physics, CAEP, P.O.Box: 919-106, Mianyang 621900, China
• Subjects: 光束质量; 安装误差; 对齐技术; 激光跟踪仪; 物理研究院; 直线感应加速器; 色彩效果; 高性能计算机; stretched wire technique; LIA alignment; beam quality
• ISSN: 1674-1137; 0254-3052; 2058-6132
• DOI: 10.1088/1674-1137/33/9/016

DRAGON-I designed and manufactured by CAEP is a linear induction accelerator which can produce a 20 MeV-3 kA-60 ns electron beam. The high performance required for the machine is determined by the beam quality and thus is greatly dependent on the accelerator alignment. In order to reduce the chromatic effect of the beam, the stretched wire technique has been developed to measure magnetic axes of the cells precisely, and the dipole steering magnets have been equipped into each cell to correct its magnetic axis misalignment. Finally, the laser tracker has been used to examine the installation error of the accelerator. In this paper, different alignment techniques and the primary results are presented and discussed.