Ultra-high-brightness and tuneable attosecond-long electron beams with the laser wake field acceleration
Year: 2025
Authors: Tomassini P., Avella F., Hafz NAM., Labate L., Horny V., Toth S., Doria D., Gizzi L.A.
Autors Affiliation: IFIN HH, Extreme Light Infrastruct Nucl Phys, 30 Reactorului St, Magurele 077125, Romania; CNR, Intense Laser Irradiat Lab, Ist Nazl Ott, I-56124 Pisa, Italy; ELI HU Nonprofit Ltd, Extreme Light Infrastruct ERIC, Wolfgang Sandner Utca 3, H-6728 Szeged, Hungary; Univ Pisa, Enrico Fermi Phys Dept, Largo Bruno Pontecorvo 3, I-56127 Pisa, Italy.
Abstract: Ultra-low emittance and length-tuneable electron beams can be obtained with the Laser Wake Field Acceleration (LWFA) by employing advanced ionization injection techniques, such as the Two-Color and the Resonant Multi-Pulse Ionization injection (ReMPI) schemes. There, a tightly focused, short wavelength (ionization) pulse extracts electrons from a selected inner shell of a dopant, allowing them to be longitudinally compressed and trapped in the wakefield excited by a different (driver) pulse. In this work we demonstrate, by means of analytical results and Particle In Cell simulations, that 340 as long electron beams with 2.3 GeV energy, 6.1 pC charge, 0.15 documentclass[12pt]{minimal} usepackage{amsmath} usepackage{wasysym} usepackage{amsfonts} usepackage{amssymb} usepackage{amsbsy} usepackage{mathrsfs} usepackage{upgreek} setlength{oddsidemargin}{-69pt} egin{document}$$\%$$end{document} projected energy spread, 60 nm normalised emittance, and projected 6D-Brightness in excess of documentclass[12pt]{minimal} usepackage{amsmath} usepackage{wasysym} usepackage{amsfonts} usepackage{amssymb} usepackage{amsbsy} usepackage{mathrsfs} usepackage{upgreek} setlength{oddsidemargin}{-69pt} egin{document}$$3 imes 10<^>{18} extrm{A}/ extrm{m}<^>2/0.1\% extrm{BW}$$end{document} can be generated with a 200 TW Ti:Sa laser system. The beam slice analysis reveals its potentialities for driving a few-spikes attosecond X-ray Free Electron Laser. Furthermore, the ultra-high projected quality, and the extreme shortness of the beams make them ideal candidates for the generation of attosecond and quasi-monochromatic documentclass[12pt]{minimal} usepackage{amsmath} usepackage{wasysym} usepackage{amsfonts} usepackage{amssymb} usepackage{amsbsy} usepackage{mathrsfs} usepackage{upgreek} setlength{oddsidemargin}{-69pt} egin{document}$$gamma$$end{document} photons beams through Thomson/Compton backscattering, or for the injection in subsequent plasma wakefield structures so as to reach TeV energies from staged LWFA.
Journal/Review: SCIENTIFIC REPORTS
Volume: 15 (1) Pages from: 40794-1 to: 40794-16
More Information: The Extreme Light Infrastructure Nuclear Physics (ELI-NP) team acknowledges the support of the Romanian Government and the European Union through the European Regional Development Fund – the Competitiveness Operational Programme (1/07.07.2016, COP, ID 1334) Phases II, and the Romanian Ministry of Research, Innovation and Digitalization: Program Nucleu PN23210105. Accessing the ELI-NP facility is supported by the IOSIN funds for research infrastructures of national interest funded by the Romanian Ministry of Research, Innovation and Digitalization. Authors draw support also from the ELI-RO contracts ELI-RO/RDI/2024 14 SPARC and ELI-RO/RDI/2024 2024 008 AMAP funded by PN III/P5/Subprogram 5.1. We acknowledge EuroHPC Joint Undertaking for awarding us access to Karolina at IT4Innovations (V & Scaron;B-TU), Czechia under project number EHPC-REG-2025R01-007 (EU-25-87); Ministry of Education, Youth and Sports of the Czech Republic through the e-INFRA CZ (ID:90140). We also acknowledge contributions from the Integrated Infrastructure Initiative in Photonic and Quantum Sciences (I-PHOQS, CUP B53C22001750006, ID D2B8D520, IR0000016) and Tuscany Health Ecosystem (THE)-Spoke 1: Advanced Radiotherapies and Diagnostics in Oncology (ECS00000017, D.D. MUR No. 1055 23 May 2022) funded by the NextGenerationEU (PNRR-Italy), EuPRAXIA Advanced Photon Sources-EuAPS (CUP I93C21000160006, IR0000030), the Horizon 2020 Framework Programme Research and Innovation and Program EuPRAXIA Preparatory Phase (No. 101079773).KeyWords: Laser wake field acceleration; High brightness electron beams; Attosecond electron beams; Free electron laser; Inverse Thomson scattering; Compton backscattering; LWFA stagingDOI: 10.1038/s41598-025-24672-7
