This report presents the conceptual design of a new European research infrastructure
EuPRAXIA. The concept has been established over the last four years in a unique …

Laser-driven plasma accelerators provide acceleration gradients that are three orders of
magnitude greater than those generated by conventional accelerators, offering the potential …

Guiding of relativistically intense laser pulses with peak power of 0.85 PW over 15 diffraction
lengths was demonstrated by increasing the focusing strength of a capillary discharge …

Multi-GeV electron beams with energy up to 4.2 GeV, 6% rms energy spread, 6 pC charge,
and 0.3 mrad rms divergence have been produced from a 9-cm-long capillary discharge …

Gigaelectron volt (GeV) electron accelerators are essential to synchrotron radiation facilities
and free-electron lasers, and as modules for high-energy particle physics. Radiofrequency …

We report guiding of laser pulses with peak input intensities greater than 10 17 W cm-2 in 30
mm and 50 mm long H 2-filled capillary discharge waveguides. Under conditions producing …

According to its nature, gas discharge is the passage of electric current through a gas that is
located under the action of external fields. The principal property of gas discharge, its self …

Active plasma lensing is a compact technology for strong focusing of charged particle
beams, which has gained considerable interest for use in novel accelerator schemes. While …

Reaching high energies with a plasma-wakefield accelerator may require use of multiple
stages. This coupling of beams from one stage to another can be nontrivial due to a …

Relativistic flying mirrors in plasmas are thin, dense electron or electron–ion layers
accelerated by high-intensity electromagnetic waves to velocities close to the speed of light …