Spin Filter for Polarized Electron Acceleration in Plasma Wakefields

doi:10.1103/PhysRevApplied.13.044064

	Spin Filter for Polarized Electron Acceleration in Plasma Wakefields
	Wu, Yitong 1,2; Ji, Liangliang 1,3; Geng, Xuesong 1,2; Thomas, Johannes 4; Buescher, Markus 5,6; Pukhov, Alexander 4; Huetzen, Anna 5,6; Zhang, Lingang 1; Shen, Baifei 1,3,7; Li, Ruxin1,3,8
	2020-04-24
发表期刊	PHYSICAL REVIEW APPLIED (IF:3.8[JCR-2023],4.3[5-Year])
ISSN	2331-7019
卷号	13 期号:4
发表状态	已发表
DOI	10.1103/PhysRevApplied.13.044064
摘要	We propose a filter method to generate electron beams of high polarization from bubble and blowout wakefield accelerators. The mechanism is based on the idea of identifying all electron-beam subsets with low polarization and filtering them out with an X-shaped slit placed immediately behind the plasma accelerator. To find these subsets we investigate the dependence between the initial azimuthal angle and the spin of single electrons during the trapping process. This dependence shows that transverse electron spins preserve their orientation during injection if they are initially aligned parallel or antiparallel to the local magnetic field. We derive a precise correlation of the local beam polarization as a function of the coordinate and the electron phase angle. Three-dimensional particle-in-cell simulations, incorporating classical spin dynamics, show that the beam polarization can be increased from 35% to about 80% after spin filtering. The injected flux is strongly restricted to preserve the beam polarization; for example, less than 1 kA in Wen et al. [Phys. Rev. Lett. 122, 214801 (2019)]. This limitation is removed by use of the proposed filter mechanism. The robustness of the method is discussed in terms of drivebeam fluctuations, jitters, the thickness of the filter, and the initial temperature. This idea marks an efficient and simple strategy to generate energetic polarized electron beams on the basis of wakefield acceleration.
URL	查看原文
收录类别	SCI ; SCIE ; EI
语种	英语
资助项目	Strategic Priority Research Program of the Chinese Academy of Sciences[XDB 16010000] ; National Natural Science Foundation of China[11875307][11935008]
WOS研究方向	Physics
WOS类目	Physics, Applied
WOS记录号	WOS:000528534700004
出版者	AMER PHYSICAL SOC
EI入藏号	20202108702120
EI主题词	Electron beams ; Electrospinning ; Plasma accelerators ; Plasma simulation ; Polarization ; Spin dynamics
EI分类号	Fiber Chemistry and Processing:819.3 ; Atomic and Molecular Physics:931.3 ; Plasma Physics:932.3
WOS关键词	PHYSICS ; ATOMS ; BEAMS
原始文献类型	Article
引用统计	正在获取...
文献类型	期刊论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/120861
专题	物质科学与技术学院_特聘教授组_李儒新组
通讯作者	Ji, Liangliang
作者单位	1.Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, State Key Lab High Field Laser Phys, Shanghai 201800, Peoples R China 2.Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China 3.CAS Ctr Excellence Ultraintense Laser Sci, Shanghai 201800, Peoples R China 4.Heinrich Heine Univ Dusseldorf, Inst Theoret Phys 1, Univ Str 1, D-40225 Dusseldorf, Germany 5.Forschungszentrum Julich, Peter Grunberg Inst PGI 6, Wilhelm Johnen Str 1, D-52425 Julich, Germany 6.Heinrich Heine Univ Dusseldorf, Inst Laser & Plasmaphys, Univ Str 1, D-40225 Dusseldorf, Germany 7.Shanghai Normal Univ, Shanghai 200234, Peoples R China 8.Shanghai Tech Univ, Shanghai 201210, Peoples R China
推荐引用方式 GB/T 7714	Wu, Yitong,Ji, Liangliang,Geng, Xuesong,et al. Spin Filter for Polarized Electron Acceleration in Plasma Wakefields[J]. PHYSICAL REVIEW APPLIED,2020,13(4).
APA	Wu, Yitong.,Ji, Liangliang.,Geng, Xuesong.,Thomas, Johannes.,Buescher, Markus.,...&Li, Ruxin.(2020).Spin Filter for Polarized Electron Acceleration in Plasma Wakefields.PHYSICAL REVIEW APPLIED,13(4).
MLA	Wu, Yitong,et al."Spin Filter for Polarized Electron Acceleration in Plasma Wakefields".PHYSICAL REVIEW APPLIED 13.4(2020).