Fundamentals and applications of hybrid LWFA-PWFA

Bernhard Hidding, Andrew Beaton, Lewis Boulton, Sebastién Corde, Andreas Doepp, Fahim Ahmad Habib, Thomas Heinemann, Arie Irman, Stefan Karsch, Gavin Kirwan, Alexander Knetsch, Grace Gloria Manahan, Alberto Martinez de la Ossa, Alastair Nutter, Paul Scherkl, Ulrich Schramm, Daniel Ullmann

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Fundamental similarities and differences between laser-driven plasma wakefield acceleration (LWFA) and particle-driven plasma wakefield acceleration (PWFA) are discussed. The complementary features enable the conception and development of novel hybrid plasma accelerators, which allow previously not accessible compact solutions for high quality electron bunch generation and arising applications. Very high energy gains can be realized by electron beam drivers even in single stages because PWFA is practically dephasing-free and not diffraction-limited. These electron driver beams for PWFA in turn can be produced in compact LWFA stages. In various hybrid approaches, these PWFA systems can be spiked with ionizing laser pulses to realize tunable and high-quality electron sources via optical density downramp injection (also known as plasma torch) or plasma photocathodes (also known as Trojan Horse) and via wakefield-induced injection (also known as WII). These hybrids can act as beam energy, brightness and quality transformers, and partially have built-in stabilizing features. They thus offer compact pathways towards beams with unprecedented emittance and brightness, which may have transformative impact for light sources and photon science applications. Furthermore, they allow the study of PWFA-specific challenges in compact setups in addition to large linac-based facilities, such as fundamental beam-plasma interaction physics, to develop novel diagnostics, and to develop contributions such as ultralow emittance test beams or other building blocks and schemes which support future plasma-based collider concepts.

Original languageEnglish
Article number2626
Number of pages20
JournalApplied Sciences
Issue number13
Publication statusPublished - 28 Jun 2019


  • accelerators
  • electron beams
  • light sources
  • photon science
  • plasma physics


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  • Fundamentals and applications of hybrid LWFA-PWFA

    Hidding, B., Beaton, A., Boulton, L., Corde, S., Doepp, A., Habib, F. A., Heinemann, T., Irman, A., Karsch, S., Kirwan, G., Knetsch, A., Manahan, G. G., de la Ossa, AM. M., Nutter, A., Scherkl, P., Schramm, U. & Ullmann, D., 6 Sept 2019, Laser-Driven Sources of High Energy Particles and Radiation - Lecture Notes of the “Capri” Advanced Summer School. Gizzi, L. A., Koester, P., Giulietti, A. & Assmann, R. (eds.). p. 95-120 26 p. (Springer Proceedings in Physics; vol. 231).

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