黄森林
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论文成果
Study of a free-electron laser driven by a laser-plasma accelerated beam at Peking University
发布时间：2020-02-14点击次数：
影响因子：
0.0
DOI码：
10.1016/j.nima.2019.02.025
发表刊物：
Nuclear Inst. and Methods in Physics Research, A
摘要：
The percent level energy spread and large divergence of laser-plasma beam are the main challenges of realizing compact short-wavelength free-electron lasers based on laser-plasma accelerators. These issues can be solved with proposed transverse gradient undulator method or bunch decompression method along with proper transport design. We present a study of using an expected 500 MeV laser-plasma beam with 0.3 𝑚𝑚 ⋅ 𝑚𝑟𝑎𝑑 normalized emittance and 0.3 𝑚𝑟𝑎𝑑 divergence at Peking University to drive compact free-electron laser at 30 nm. We employ the bunch decompression method with a chromatic matching beamline as well as the transverse gradient undulator method with assumed matched beam. Simulation shows that 700 MW power, 9.7 fs pulse duration and 0.85% relative bandwidth FEL output can be obtained using chromatic matched bunch decompression method. FEL with similar performance can be obtained using the transverse gradient undulator scheme.
卷号：
925
页面范围：
193–198
是否译文：
否
发表时间：
2019-02-15
附件：