Generation of tunable, 100-800 MeV quasi-monoenergetic electron beams from a laser-wakefield accelerator in the blowout regime

被引：44

作者：

Banerjee, S. ^{[1
]}

Powers, N. D. ^{[1
]}

Ramanathan, V. ^{[1
]}

Ghebregziabher, I. ^{[1
]}

Brown, K. J. ^{[1
]}

Maharjan, C. M. ^{[1
]}

Chen, S. ^{[1
]}

Beck, A. ^{[2
]}

Lefebvre, E. ^{[2
]}

Kalmykov, S. Y. ^{[2
]}

Shadwick, B. A. ^{[2
]}

Umstadter, D. P. ^{[1
]}

机构：

[1] Univ Nebraska, Dept Phys & Astron, Lincoln, NE 68588 USA

[2] CEA, DAM, DIF, F-91297 Arpajon, France

来源：

PHYSICS OF PLASMAS | 2012年 / 19卷 / 05期

关键词：

INJECTION; PULSES; DRIVEN; BUBBLE; WAKE;

D O I：

10.1063/1.4718711

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：

In this paper, we present results on a scalable high-energy electron source based on laser wakefield acceleration. The electron accelerator using 30-80 TW, 30 fs laser pulses, operates in the blowout regime, and produces high-quality, quasi-monoenergetic electron beams in the range 100-800 MeV. These beams have angular divergence of 1-4 mrad, and 5%-25% energy spread, with a resulting brightness 10(11) electrons mm(-2) MeV-1 mrad(-2). The beam parameters can be tuned by varying the laser and plasma conditions. The use of a high-quality laser pulse and appropriate target conditions enables optimization of beam quality, concentrating a significant fraction of the accelerated charge into the quasi-monoenergetic component. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4718711]

引用

页数：8