Control of seeding phase for a cascaded laser wakefield accelerator with gradient injection

被引：27

作者：

Wang, Wentao ^{[1
]}

Li, Wentao ^{[1
]}

Liu, Jiansheng ^{[1
]}

Wang, Cheng ^{[1
]}

Chen, Qiang ^{[1
]}

Zhang, Zhijun ^{[1
]}

Qi, Rong ^{[1
]}

Leng, Yuxin ^{[1
]}

Liang, Xiaoyan ^{[1
]}

Liu, Yanqi ^{[1
]}

Lu, Xiaoming ^{[1
]}

Wang, Cheng ^{[1
]}

Li, Ruxin ^{[1
]}

Xu, Zhizhan ^{[1
]}

机构：

[1] Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, State Key Lab High Field Laser Phys, Shanghai 201800, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2013年 / 103卷 / 24期

基金：

中国国家自然科学基金;

关键词：

PLASMA WAKE; ELECTRONS;

D O I：

10.1063/1.4842236

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We demonstrated experimentally the seeding-phase control for a two-stage laser wakefield accelerator with gradient injection. By optimizing the seeding phase of electrons into the second stage, electron beams beyond 0.5 GeV with a 3% rms energy spread were produced over a short acceleration distance of similar to 2 mm. Peak energy of the electron beam was further extended beyond 1 GeV by lengthening the second acceleration stage to 5mm. Time-resolved magnetic field measurements via magneto-optical Faraday polarimetry allowed us to monitor the processes of electron seeding and acceleration in the second stage. (C) 2013 AIP Publishing LLC.

引用

页数：5

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