Progress towards laser plasma based free electron laser on COXINEL

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 chic...

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Published inJournal of physics. Conference series Vol. 1596; no. 1; pp. 12040 - 12047
Main Authors 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
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.07.2020
Subjects
Chicanes
Electron beams
Free electron lasers
Laser applications
Laser plasmas
Lasers
Physics
Plasma acceleration
Position measurement
Quadrupoles
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Summary: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.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/1596/1/012040