黄森林
Associate professor

Gender:Male

Alma Mater:北京大学

Education Level:Postgraduate (Doctoral)

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Paper Publications

Study of a free-electron laser driven by a laser-plasma accelerated beam at Peking University

Release time:2020-02-14 Hits:

Impact Factor:0.0

DOI number:10.1016/j.nima.2019.02.025

Journal:Nuclear Inst. and Methods in Physics Research, A

Abstract: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.

Volume:925

Page Number:193–198

Translation or Not:no

Date of Publication:2019-02-15

Links to published journals:https://doi.org/10.1016/j.nima.2019.02.025

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