Thermal emittance from ionization-induced trapping in plasma accelerators

被引：36

作者：

Schroeder, C. B. ^{[1
]}

Vay, J. -L. ^{[1
]}

Esarey, E. ^{[1
]}

Bulanov, S. S. ^{[1
,2
]}

Benedetti, C. ^{[1
]}

Yu, L. -L. ^{[3
]}

Chen, M. ^{[3
]}

Geddes, C. G. R. ^{[1
]}

Leemans, W. P. ^{[1
,2
]}

机构：

[1] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA

[2] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA

[3] Shanghai Jiao Tong Univ, Dept Phys & Astron, Minist Educ, Key Lab Laser Plasmas, Shanghai 200240, Peoples R China

来源：

PHYSICAL REVIEW SPECIAL TOPICS-ACCELERATORS AND BEAMS | 2014年 / 17卷 / 10期

基金：

中国国家自然科学基金;

关键词：

COLLIDING LASER-PULSES; ELECTRON INJECTION; WAKE FIELDS; WAKEFIELD; DRIVEN;

D O I：

10.1103/PhysRevSTAB.17.101301

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

The minimum obtainable transverse emittance (thermal emittance) of electron beams generated and trapped in plasma-based accelerators using laser ionization injection is examined. The initial transverse phase space distribution following ionization and passage through the laser is derived, and expressions for the normalized transverse beam emittance, both along and orthogonal to the laser polarization, are presented. Results are compared to particle-in-cell simulations. Ultralow emittance beams can be generated using laser ionization injection into plasma accelerators, and examples are presented showing normalized emittances on the order of tens of nm.

引用

页数：11

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