Control of laser plasma accelerated electrons for light sources
- Fonction : Auteur
- PersonId : 183870
- IdHAL : tandre
- ORCID : 0000-0002-7650-4999
- IdRef : 23467511X
- Fonction : Auteur
- PersonId : 1168204
- IdHAL : igor-andriyash
- Fonction : Auteur
- PersonId : 4363
- IdHAL : cedric-thaury
- ORCID : 0000-0002-6537-8392
- IdRef : 134340183
- Fonction : Auteur
- PersonId : 4339
- IdHAL : guillaume-lambert
- IdRef : 129226882
- Fonction : Auteur
- PersonId : 4336
- IdHAL : victor-malka
- ORCID : 0000-0002-0488-2587
- IdRef : 108077799
- Fonction : Auteur
- PersonId : 19544
- IdHAL : benoit-mahieu
- ORCID : 0000-0002-5439-0433
- IdRef : 170377431
- Fonction : Auteur
- PersonId : 4412
- IdHAL : sebastien-corde
- ORCID : 0000-0002-5015-0387
- IdRef : 168213613
- Fonction : Auteur
- PersonId : 4337
- IdHAL : jean-philippe-goddet
- IdRef : 147945127
- Fonction : Auteur
- PersonId : 1030631
Résumé
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.
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