Toward a plasma-based accelerator at high beam energy with high beam charge and high beam quality

Year: 2020

Authors: Nghiem, PAP., Assmann R., Beck A., Chance A., Chiadroni E., Cros B., Ferrario M., Pousa AF., Giribono A., Hidding B., Lee P., Li X., Marocchino A., de la Ossa AM., Massimo F., Maynard G., Mosnier A., Romeo S., Silva T., Svystun E., Tomassini P., Vaccarezza C., Vieira J., Zhu J., Gizzi LA., Rossi AR.

Autors Affiliation: Univ Paris Saclay, IRFU, CEA, F-91191 Gif Sur Yvette, France; DESY, D-22607 Hamburg, Germany; Univ Hamburg, Inst Experimentalphys, D-22761 Hamburg, Germany;‎ Ecole Polytech, LLR, CNRS, F-91128 Palaiseau, France;‎ Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Rome, Italy;‎ Univ Paris Saclay, Univ Paris Sud, LPGP, CNRS, F-91405 Orsay, France;‎ CNR, Ist Nazl Ott, I-56124 Pisa, Italy; Cockcroft Inst, Warrington WA4 4AD, Cheshire, England;‎ DESY, D-15738 Zeuthen, Germany;‎ Sapienza Univ Rome, I-00161 Rome, Italy;‎ Ist Nazl Fis Nucl, Sez Milano, I-20133 Milan, Italy; Univ Lisbon, Inst Super Tecn, Inst Plasmas & Fusao Nucl, GoLP, P-1049001 Lisbon, Portugal

Abstract: From plasma-wakefield acceleration as a physics experiment toward a plasma-based accelerator as a user facility, the beam physics issues remaining to be solved are still numerous. Providing beams with high energy, charge, and quality simultaneously, not only within the plasma but also at the user doorstep itself, is the main concern. Despite its tremendous efficiency in particle acceleration, the wakefield displays a complex 3D profile which, associated to the beam-loading field induced by the accelerated beam itself, makes the acceleration of high charge to high energy often incompatible with high beam quality. Beam extraction from the plasma without quality degradation for a transfer either to the next plasma stage or to the user application is another difficulty to consider. This article presents the substantial studies carried out and the different innovative methods employed for tackling all these different issues. Efforts focused on achieving the challenging beam parameters targeted by the EuPRAXIA accelerator facility project. The lessons learned at the end of these in-depth simulations and optimisations are highlighted. The sensitivity to different error sources is also estimated to point out the critical components of such an accelerator. Finally, the needs in terms of laser and plasma parameters are provid

Journal/Review: PHYSICAL REVIEW ACCELERATORS AND BEAMS

Volume: 23 (3)      Pages from: 31301-1  to: 31301-17

More Information: This work has received funding from the European Union’s Horizon 2020 research and innovation program under Grant Agreement No. 653782.
KeyWords: In-cell Code; Wakefield Acceleration; Electron-beams; Injection; Design
DOI: 10.1103/PhysRevAccelBeams.23.031301

Citations: 5
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