Beam steering correction of the quarter wave resonator in the HISCL
Beam steering correction of the quarter wave resonator in the HISCL
复制标题
HISCL 中四分之一波谐振器的光束转向校正
DOI：
10.1088/1674-1137/38/10/107007
复制
发表时间：
2014-10
影响因子：
3.6
通讯作者：
He Yuan
中科院分区：
文献类型：
--
作者：
Liu Shu-Hui;Wang Zhi-Jun;Zhang Cong;He Yuan
强流重离子超导直线加速器是中国提出的一项新课题，作为强流重离子加速器的注入器进行了设计。低能量部分的设计选项之一是基于四分之一波谐振器(QWR)。然而，由于腔体的不对称几何形状，在束孔附近存在偶极场，这可能会垂直引导束流，从而导致发射度增长和束流损失。本文分析了偶极模场的影响，提出了一种通过放置相反取向的QWR来克服波束控制效应的方法。仿真结果表明，该方法有效地减小了波束转向效应，使波束质心偏差由2.87 mm减小到0.1 mm。发射度的增长也较小。
The Intensity Heavy Ion Superconducting Linear Accelerator as the injector of the High Intensity Heavy-Ion Accelerator Facility, which is a new project proposed in China has been designed. One of the design options in the low energy part is based on Quarter Wave Resonators (QWRs). However, because of the unsymmetrical geometry of the cavity, there are dipole fields near the beam hole, which may steer the beam vertically, thus leading to emittance growth and beam loss. The effect of the dipole mode field is analyzed, and a method to overcome the beam steering effect by placing QWRs with opposite orientation is proposed in this paper. The simulation results show that the beam steering effect is reduced effectively by this method, and the deviation of the beam centroid is decreased from 2.87 mm to 0.1 mm. The emittance growth is also smaller.
DOI：
--
发表时间：
2010
期刊：
--
影响因子：
--
作者：
B. Mustapha;P. Ostroumov
通讯作者：
B. Mustapha;P. Ostroumov
影响因子：
1.7
作者：
G. Devanz
通讯作者：
G. Devanz