2017/06/15 by M. Labat, Moussa El Ajjouri, Labat, Marie +9
Engineering · Materials Science · Physics and Astronomy · #00B25 #Accelerator Physics (physics.acc-ph) #Advanced Surface Polishing Techniques #Diamond and Carbon-based Materials Research #FOS: Physical sciences #Laser-Plasma Interactions and Diagnostics
paper · pdf · doi:10.48550/arxiv.1706.04822
openalex publication_date 2017/06/15 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
It is now well established that laser plasma acceleration (LPA) is an innovative and good candidate in the beam acceleration field. Relativistic beams are indeed produced up to several GeV but their quality remains to be demonstrated in the highly demanding case of Free Electron Lasers (FELs). Several experiments already showed the feasibility of synchrotron radiation delivery based on a LPA but free electron lasing has still to be achieved. Since the quality of the LPA beam inside the undulator is the critical issue, any LPA based FEL experiment requires a refined characterization of the beam properties along the transport line and of the photon beam at the undulator exit. This characterization relies on diagnostics which must be adapted to the LPA specificities. We will review the electron and photon diagnostics already used on LPAs and required for LPA based FELs, and illustrate the critical points using recent experiments performed around the world.