Study of the Electron Transport in the COXINEL FEL Beamline Using a Laser-Plasma Accelerated Electron Beam

Thomas André (1) , Igor Andriyash (1) , Serge Bielawski (2) , Frederic Blache (1) , Francois Bouvet (1) , Fabien Briquez (1) , Sebastien Corde (3) , Marie-Emmanuelle Couprie (1) , Yannick Dietrich (1) , Jean-Pierre Duval (1) , Moussa El Ajjouri (1) , Clement Evain (2) , Julien Gautier (3) , Amin Ghaith (1) , Christian Herbeaux (1) , Nicolas Hubert (1) , Martin Khojoyan (1) , Charles Kitegi (1) , Marie Labat (1) , Guillaume Lambert (3) , Nicolas Leclercq (1) , Alain Lestrade (1) , Alexandre Loulergue (1) , Benoît Mahieu (3) , Victor Malka (3) , Olivier Marcouillé (1) , Fabrice Marteau (1) , Patrick N'Gotta (1) , Patrick Rommeluère (1) , Eléonore Roussel (1) , Mourad Sebdaoui (1) , Christophe Szwaj (2) , Kim Ta Phuoc (3) , Keihan Tavakoli (1) , Cedric Thaury (3) , Mathieu Valléau (1)

1 SSOLEIL - Synchrotron SOLEIL
2 PhLAM - Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523
3 LOA - Laboratoire d'optique appliquée

The ERC Advanced Grant COXINEL aims at demonstrating free electron laser (FEL) at 200 nm, based on a laser-plasma accelerator (LPA). To achieve the FEL amplification a transport line was designed to manipulate the beam properties. The 10 m long COXINEL line comprises a first triplet of permanent-magnet variable-strength quadrupoles (QUAPEVA), which handles the large divergence of LPA electrons, a magnetic chicane, which reduces the slice energy spread, and finally a set of electromagnetic quadrupoles, which provides a chromatic focusing in a 2-m undulator. Electrons were successfully transported through the line from LPA with ionization-assisted self-injection (broad energy spectra up to~250 MeV, few-milliradian divergence).

Keywords: ion; laser; electron; undulator; plasma

Domains: Physics [physics]; Physics [physics]; Accelerator Physics [physics.acc-ph]

Thomas André, Igor Andriyash, Serge Bielawski, Frederic Blache, Francois Bouvet, et al.. Study of the Electron Transport in the COXINEL FEL Beamline Using a Laser-Plasma Accelerated Electron Beam. 38th International Free-Electron Laser Conference, Aug 2017, Santa Fe, United States. pp.TUP061, ⟨10.18429/JACoW-FEL2017-TUP061⟩. ⟨hal-01802026⟩