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Towards a Free Electron Laser Using Laser Plasma Acceleration

Abstract : Since the laser invention, the advent of X-ray Free Electron Lasers (FEL) half a century later, opens new areas for matter investigation. In parallel, the spectacular development of laser plasma acceleration (LPA) with several GeV beam acceleration in an extremely short distance appears very promising. As a first step, the qualification of the LPA with a FEL application sets a first challenge. Still, energy spread and beam divergence do not meet the state-of-the-art performance of the conventional accelerators and have to be manipulated to fulfill the FEL requirement. We report here on the undulator spontaneous emission measured after a transport manipulation electron beam line, using variable permanent magnet quadrupoles of variable strength for emittance handing and a demixing chicane equipped with a slit for the energy spread. Strategies of control electron beam position and dispersion have been elaborated. The measured undulator radiation provides an insight on the electron beam properties.
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https://hal.archives-ouvertes.fr/hal-01871673
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Submitted on : Tuesday, September 11, 2018 - 10:33:47 AM
Last modification on : Wednesday, May 11, 2022 - 3:22:05 PM

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Alexandre Loulergue, Thomas André, Igor Andriyash, Chamseddine Benabderrahmane, Philippe Berteaud, et al.. Towards a Free Electron Laser Using Laser Plasma Acceleration. 9th International Particle Accelerator Conference, Apr 2018, Vancouver, Canada. pp.THPML033, ⟨10.18429/JACoW-IPAC2018-THPML033⟩. ⟨hal-01871673⟩

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