Author:
Couprie Marie-Emmanuelle,André Thomas,Blache Frédéric,Bouvet François,Dietrich Yannick,Duval Jean-Pierre,El-Ajjouri Moussa,Ghaith Amin,Herbeaux Christian,Hubert Nicolas,Kitégi Charles,Khojoyan Martin,Labat Marie,Leclercq Nicolas,Lestrade Alain,Loulergue Alexandre,Marcouillé Olivier,Marteau Fabrice,Oumbarek-Espinos Driss,Rommeluére Patrick,Sebdaoui Mourad,Tavakoli Keihan,Valléau Mathieu,Corde Sébastien,Gautier Julien,Goddet Jean Philippe,Kononenko Olena,Lambert Guillaume,Tafzi Amar,Phuoc Kim Ta,Thaury Cédric,Bielawski Serge,Roussel Eléonore,Szwaj Christophe,Andriyash Igor,Malka Victor,Smartsev Slava
Abstract
Abstract
The Free Electron Laser (FEL) application of Laser Plasma Acceleration (LPA) requires the handling of the energy spread and divergence. The COXINEL manipulation line, designed and built at SOLEIL for this purpose, consists of high gradient quadrupoles for divergence handling and a decompression chicane for energy sorting, enabling FEL amplification with baseline parameters. Installed at Laboratoire d’Optique Appliquee (LOA), it uses robust electrons generated and accelerated by ionization injection using a 30 TW laser. We report here on the work progress towards a FEL demonstration. The LPA measured electron beam characteristics deviates from the baseline reference case. After the installation of the equipment, the electron beam transport has first been optimized. The electron position and dispersion are independently adjusted. Then, undulator radiation has been measured. The spectral purity is controlled via the energy spread adjusted in the slit located in the chicane. FEL effect demonstration is within reach, with currently achieved performance on different LPA experiments.
Subject
General Physics and Astronomy