WG1: Plasma-based accelerators and ancillary components
Topics addressed:
- Laser-driven plasma acceleration
- Beam-driven plasma acceleration
- Recent experimental results and planned experiments
- Single and multi-drive pulses (either laser or particle bunches)
- External and self-injection techniques
- Novel acceleration schemes
- Staging
- Advanced beam control and manipulation
Co-Leader: Min Chen, Shangai Univ.
Co-Leader: Riccardo Pompili, INFN – LNF
WG2: Laser technology (WP6 - Task2)
Topics addressed:
- Recent achievements and future challenges in laser drivers for LPA
- Needs for laser driven accelerators (laser-plasma ion source, LWFA, IFEL, dielectric laser, ...)
- State-of-the-art of high peak and average power and perspectives
- Laser beam quality, contrast, stability
- High repetition rate issues
- TRL Studies
Co-Leader: Leonida A. Gizzi, INO-CNR
Co-Leader: Mariastefania De Vido, STFC
Co-Leader: Paul Crump, FBH – Berlin
Co-Leader: Gilles Cheriaux, CNRS
Co-Leader: Christophe Simon-Boisson, Thales
WG3: Theory and simulations
Topics addressed:
- New theoretical works on plasma-based acceleration
- State-of-the-art computational tools for enabling realistic and rapid simulations
- Choices in computational tools (PIC, quasi-static PIC, and fluid)
- Novel algorithms and numerical analysis
- Multi-core computation and graphics processing tools
Co-Leader: Andrea Renato Rossi, INFN
Co-Leader: Maxence Thevenet, DESY
WG4: High gradient vacuum structures
Topics addressed:
- New High power, high frequency RF structures
- Dielectric laser and dielectric wakefield acceleration
- Photonic accelerator structures
- THz-driven accelerators
- Advanced and exotic structures using novel materials
- Inverse FEL acceleration
- Recent experimental results and planned experiments
Co-Leader: Sami Tantawi, SLAC
Co-Leader: Andrea Mostacci, Sapienza Univ.
WG5: Applications
Topics addressed:
- All potential applications: FEL, medical, radiation generation, cultural heritage...
- Recent experimental results and planned demonstration experiments
- Planned facilities implementing advanced accelerator with applications
- Betatron radiation
Co-Leader: Louise Willingale, Michigan Univ.
Co-Leader: Gianluca Sarri, Queen's Univ.
WG6: Ion acceleration and developments towards fusion
Topics addressed:
- Ion beams produced by laser-plasma sources
- Recent experimental results and planned experiments
- Novel targets
- Novel acceleration mechanisms (radiation pressure, shock and hole-boring, ...)
- R&D towards fusion experiments
Co-Leader: Marco Borghesi, Queens University
Co-Leader: Matthew Zepf,Jena Univ.
WG7: Beam diagnostics, instrumentation, Machine Learning
Topics addressed:
- Transverse and longitudinal phase space characterization
- Energy, charge, pointing stability measurement
- Single and multi-shot techniques
- Novel diagnostic devices: ideas and experiments
- Machine Learning and Artificial Intelligence for design and operation of particle accelerators
Co-Leader: Andreas Döpp, LMU Munchen
Co-Leader: Rasmus Ischebeck, PSI
WG8: Plasma sources and related diagnostics
Topics addressed:
- Discharge plasma sources;
- Gas jets, plasma cells, dielectric capillary tubes, alkali vapor ovens, ...
- Plasma lens
- Plasma dechirper
- Doping for ionization injection
- Laser guiding in plasma modules, preformed plasma waveguide
- Plasma homogeneity, plasma profile tailoring
- Plasma diagnostics
Co-Leader: Angelo Biagioni, INFN
Co-Leader: Malte Kaluza, Jena Univ.
WG9: From conventional to advanced undulators
Topics addressed:
- Superconducting undulators
- New undulator concept and technology for FEL driven by plasma-based acceleration (transverse tapering, optical and plasma undulators)
Co-Leader: Sara Casalbuoni, EuXFEL
Co-Leader: James Rosenzweig, UCLA
WG10: ALEGRO towards colliders
Topics addressed:
- Examine key challenges
- Discuss suitable concepts and identify topics for future R&D or innovation including electron and positron sources, acceleration of positrons, luminosity, final focus, damping ring and efficiency
Co-Leader: Brigitte Cros, Paris Saclay
Co-Leader: Rajeev Pattathil, STFC
