Modelling a laser plasma accelerator driven free electron laser

Alotaibi, Badriah Mesfer M and Khalil, Sh M and McNeil, Brian and Traczykowski, Piotr (2019) Modelling a laser plasma accelerator driven free electron laser. Journal of Physics Communications, 3 (6). 065007. ISSN 2399-6528 (https://doi.org/10.1088/2399-6528/ab291b)

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Abstract

Free-electron lasers (FEL) are the brightest, coherent sources of short wavelength radiation from the VUV into the x-ray. There is much research interest in reducing the cost and the size of FELs by utilising new accelerator techniques. Laser-plasma accelerator (LPA) are a promising accelerator for next generation compact FEL light sources with many potential advantages due to the high acceleration gradient and large peak currents they offer. The electron beams of a LPA typically have a smaller transverse emittance, a large energy spread and tend to be of shorter duration and higher current than conventional Radio Frequency (RF) accelerators. In this paper, a FEL driven by an electron beam from a typical LPA was simulated using the 3D FEL simulation code Puffin. It is shown that lowering the homogenous electron beam energy spread increases the radiation energy output in a short undulator and , as become less than the FEL, or Pierce parameter ($\rho $), then the peak radiation energy increases and the saturation length reduces significantly as expected.

  • Item type:Article
    ID code:68836
    Dates:
    Date
    Event
    24 June 2019
    Published
    12 June 2019
    Accepted
    Subjects:Science > Physics
    Department:Faculty of Science > Physics
    Depositing user: Pure Administrator
    Date deposited:11 Jul 2019 15:52
    Last modified:26 Apr 2024 00:35
    URI:https://strathprints.strath.ac.uk/id/eprint/68836
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