Detailed dynamics of electron beams self-trapped and accelerated in a self-modulated laser wakefield

被引：55

作者：

Chen, SY ^{[1
]}

Krishnan, M ^{[1
]}

Maksimchuk, A ^{[1
]}

Wagner, R ^{[1
]}

Umstadter, D ^{[1
]}

机构：

[1] Univ Michigan, Ctr Ultrafast Opt Sci, Ann Arbor, MI 48109 USA

来源：

PHYSICS OF PLASMAS | 1999年 / 6卷 / 12期

关键词：

D O I：

10.1063/1.873761

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

The electron beam generated in a self-modulated laser-wakefield accelerator is characterized in detail. A transverse normalized emittance of 0.06 pi mm mrad, the lowest ever for an electron injector, was measured for 2 MeV electrons. The electron beam was observed to have a multicomponent beam profile and energy distribution. The latter also undergoes discrete transitions as the laser power or plasma density is varied. In addition, dark spots that form regular modes were observed in the electron beam profile. These features are explained by analysis and test particle simulations of electron dynamics during acceleration in a three-dimensional plasma wakefield. (C) 1999 American Institute of Physics. [S1070-664X(99)03612-5].

引用

页码：4739 / 4749

页数：11

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