Generation of good-quality relativistic electron beam from self-modulated laser wakefield acceleration

被引：5
作者：
Hafz, N.
Kim, G. H.
Kim, C.
Suk, H. [1 ]
机构：
[1] Ctr Adv Accelators, Korea Electrotechnol Res Inst, Chang Won 641120, South Korea
[2] Pohang Light Source, Pohang 790784, South Korea
来源：
INTERNATIONAL JOURNAL OF MODERN PHYSICS B | 2007年 / 21卷 / 3-4期
关键词：
D O I：
10.1142/S0217979207042173
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
A relativistic electron bunch with a large charge (similar to 2 nC) was produced from a self-modulated laser wakefield acceleration configuration. In this experiment, an intense laser pulse with a peak power of 2 TW and a duration of 700 fs was focused in a nitrogen gas jet, and multi-MeV electrons were observed from the strong laser-plasma interaction. By passing the electrons through a small pinhole-like collimator of cone f/70, we observed a narrowing in the electron beam's energy spread. The beam clearly showed a small energy-spread behavior with a central energy of 4.8 MeV and a charge of 115 pC. The acceleration gradient was estimated to be about 20 GeV/m.
引用
收藏
页码：398 / 406
页数：9
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