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黄森林
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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: