Beam loss distribution calculation and collimation efficiency simulation of a cooler storage ring in a heavy ion research facility

doi:10.1103/PhysRevSTAB.17.084201

	Beam loss distribution calculation and collimation efficiency simulation of a cooler storage ring in a heavy ion research facility
	Li, Peng1 ; Yuan, Youjin1 ; Yang, Jiancheng1 ; Li, Min1,2 ; Yang, Xiaodong1 ; Mao, Ruishi1 ; Meng, Jun1 ; Jiang, Peiyong 1,2; Zheng, Wenheng1,2 ; Chai, Zhen 1
刊名	PHYSICAL REVIEW SPECIAL TOPICS-ACCELERATORS AND BEAMS
	2014-08-28
卷号	17
ISSN号	1098-4402
DOI	10.1103/PhysRevSTAB.17.084201
文献子类	Article
英文摘要	The Heavy Ion Research Facility in Lanzhou is an ion cooler storage ring facility in China's Institute of Modern Physics. The beams are accumulated, electron cooled, accelerated, and extracted from the main cooler storage ring (CSRm) to the experimental ring or different terminals. The heavy ion beams are easily lost at the vacuum chamber along the CSRm when it is used to accumulate intermediate charge state particles. The vacuum pressure bump due to the ion-induced desorption in turn leads to an increase in beam loss rate. In order to avoid the complete beam loss, the collimation system is investigated and planned to be installed in the CSRm. First, the beam loss distribution is simulated considering the particle charge exchanged process. Then the collimation efficiency of the lost particles is calculated and optimized under different position and geometry of the collimators and beam emittance and so on. Furthermore, the beam orbit distortion that is caused by different types of errors in the ring will affect the collimation efficiency. The linearized and inhomogeneous equations of particle motion with these errors are derived and solved by an extended transfer matrix method. Actual magnet alignment errors are adopted to investigate the collimation efficiency of the lost particles in the CSRm. Estimation of the beam loss positions and optimization of the collimation system is completed by a newly developed simulation program.
资助项目	National Natural Science Foundation of China[11305227]
WOS关键词	HIRFL-CSR ; LANZHOU ; PROJECT ; IMP
WOS研究方向	Physics
语种	英语
出版者	AMER PHYSICAL SOC
WOS记录号	WOS:000341293800002
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/49187]
专题	中国科学院近代物理研究所
通讯作者	Li, Peng
作者单位	1.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	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.
APA	Li, Peng.,Yuan, Youjin.,Yang, Jiancheng.,Li, Min.,Yang, Xiaodong.,...&Wang, Shaoming.(2014).Beam loss distribution calculation and collimation efficiency simulation of a cooler storage ring in a heavy ion research facility.PHYSICAL REVIEW SPECIAL TOPICS-ACCELERATORS AND BEAMS,17.
MLA	Li, Peng,et al."Beam loss distribution calculation and collimation efficiency simulation of a cooler storage ring in a heavy ion research facility".PHYSICAL REVIEW SPECIAL TOPICS-ACCELERATORS AND BEAMS 17(2014).