Control of laser plasma accelerated electrons for light sources

T. André (1, 2) , I. Andriyash (1) , A. Loulergue (1) , M. Labat (1) , E. Roussel (3, 1) , A. Ghaith (1, 2) , M. Khojoyan (1) , C. Thaury (4) , M. Valléau (1) , F. Briquez (1) , F. Marteau (1) , K. Tavakoli (1) , P N 'Gotta (1) , Y. Dietrich (1) , Guillaume Lambert (4) , Victor Malka (4, 5) , C. Benabderrahmane (1) , J. Vétéran (1) , L. Chapuis (1) , T El Ajjouri (1) , M. Sebdaoui (1) , N. Hubert (1) , O. Marcouillé (1) , P. Berteaud (1) , N. Leclercq (1) , M El Ajjouri (1) , P. Rommeluere (1) , F. Bouvet (1) , J.-P Duval (1) , C. Kitegi (1) , F. Blache (1) , B. Mahieu (4) , S. Corde (4) , J. Gautier (4) , Kim Ta Phuoc , Jean-Philippe P Goddet (4) , A. Lestrade (1) , C. Herbeaux (1) , C. Évain (3) , C. Szwaj (3) , S. Bielawski (3) , A. Tafzi (4) , Pascal Rousseau (4) , S. Smartsev (4, 5) , F. Polack (1) , D. Dennetière (1) , C. Bourassin-Bouchet (1) , C. de Oliveira (1) , M.-E. Couprie (1, 2)

1 SSOLEIL - Synchrotron SOLEIL
2 Université Paris-Saclay
3 PhLAM - Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523
4 LOA - Laboratoire d'optique appliquée
5 Weizmann Institute of Science, Department of Physics of Complex Systems

With gigaelectron-volts per centimetre energy gains and femtosecond electron beams, laser wakefield acceleration (LWFA) is a promising candidate for applications, such as ultrafast electron diffraction, multistaged colliders and radiation sources (betatron, compton, undu-lator, free electron laser). However, for some of these applications, the beam performance, for example, energy spread, divergence and shot-to-shot fluctuations, need a drastic improvement. Here, we show that, using a dedicated transport line, we can mitigate these initial weaknesses. We demonstrate that we can manipulate the beam longitudinal and transverse phase-space of the presently available LWFA beams. Indeed, we separately correct orbit mis-steerings and minimise dispersion thanks to specially designed variable strength quadrupoles, and select the useful energy range passing through a slit in a magnetic chicane. Therefore, this matched electron beam leads to the successful observation of undulator synchrotron radiation after an 8 m transport path. These results pave the way to applications demanding in terms of beam quality.

Domaines: Physique des plasmas [physics.plasm-ph]; Physique des accélérateurs [physics.acc-ph]

T. André, I. Andriyash, A. Loulergue, M. Labat, E. Roussel, et al.. Control of laser plasma accelerated electrons for light sources. Nature Communications, 2018, 9, ⟨10.1038/s41467-018-03776-x⟩. ⟨hal-01763699⟩