CSRm束流准直器模型腔设计
Design of Prototype Collimator for CSRm
-
摘要: 目前国际上的强流重离子加速器通常在机器中安装镀有低解吸率材料的束流准直器用于阻挡由于电荷态变化而损失的离子，降低解吸出的粒子数以维持真空系统的稳定。本文计划在现有的加速器冷却储存环主环（CSRm）上开展准直器模型腔测试、真空解吸率测量方面的研究。首先将介绍在CSRm上开展准直器系统研究的意义，其次根据实验室开发的损失率模拟计算软件确定准直器模型腔的安装位置，对安装位置中的真空设备进行了描述。随后重点阐述了CSRm准直器模型腔的硬件设计、控制系统及将来的测试方案。
-
关键词:
- 高能强流重离子加速器 ,
- 束流损失 ,
- 准直器 ,
- 真空材料解吸率
Abstract: In order to suppress and control the gas desorption process, specifically designed beam catchers (collimators) with lower desorption rate material are installed at the impact positions to stabilize the vacuum system in the high intensity heavy ion accelerator. The test of prototype collimator and measurement of desorption rate will be carried out in the CSRm. The importance of collimation system research at CSRm was described in this paper. The prototype collimator installation position was calculated by the beam loss simulation program. The mechanical design of the vacuum chamber and the vacuum instruments were described. The control system of this collimation system and the beam test plan were also introduced in this paper. -
-
[1] FAIR 2006 Baseline Technical Report[R/OL]. (2006)[2015]. http:∥www.fair-center.eu /for-users/publications/fair.html. [2] OMET C, STADLMANN P S J, HOFFMANN D H H. Charge change-induced beam losses under dynamic vacuum conditions in ring accelerators[J]. New Journal of Physics, 2006, 8: 284-302. [3] SPILLER P. Towards the high intensity limit in the FAIR project present status and future challenges[C]∥Proceedings of HB2010. Morschach, Switzerland: [s. n.], 2010. [4] SPILLER P, BLASCHE K, STADLMANN B F J, et al. Optimization of the SIS100 lattice and a dedicated collimation system for ionization losses[C]∥3rd ICFA Advanced Beam Dynamics Workshop on High Intensity and High Brightness Hadron Beams. [S. l.]: [s. n.], 2005. [5] LI Peng, YUAN Youjin, YANG Jiancheng, et al. Beam loss distribution calculation and collimation efficiency simulation of a cooler storage ring in a heavy ion research facility[J]. Physical Review Special Topics: Accelerators and Beams, 2014, 17: 084201. [6] LI Peng, YUAN Youjin, YANG Jiancheng, et al. The conceptual design of collimation system for CSRm[C]∥The 12th Symposium on Accelerator Physics. Lanzhou: [s. n.], 2014. [7] YANG X T, ZHANG J H, ZHANG X J, et al. The ultra-high vacuum system of HIRFL-CSR[J]. Vacuum, 2001, 61: 55-60. [8] Beckhoff EtherCAT. (2009)[2015]. http:∥www.beckhoff.com.cn/.
计量
- 文章访问数: 307
- HTML全文浏览量: 7
- PDF下载量: 1030
下载:
