High-efficiency acceleration of charged particle beams at high gradients of energy gain per
unit length is necessary to achieve an affordable and compact high-energy collider. The …

Plasmas excited by laser beams or bunches of relativistic electrons have been used to
produce electric fields of 10–100 GV m− 1. This has opened up the possibility of building …

Particle accelerators are the ultimate microscopes. They produce high energy beams of
particles—or, in some cases, generate X-ray laser pulses—to probe the fundamental …

The generation of ultrarelativistic positron beams with short duration (τ e+≃ 30 fs), small
divergence (θ e+≃ 3 mrad), and high density (ne+≃ 10 14–10 15 cm-3) from a fully optical …

During the past two decades of research, the ultra-relativistic beam-driven plasma wakefield
accelerator (PWFA) concept has achieved many significant milestones. These include the …

A plasma-wakefield accelerator has accelerated particles by over 2.7 GeV in a 10 cm long
plasma module. A 28.5 GeV electron beam with 1.8× 10 10 electrons is compressed to 20 μ …

Radio-frequency particle accelerators are engines of discovery, powering high-energy
physics and photon science, but are also large and expensive due to their limited …

FACET—Facilities for Accelerator science and Experimental Test beams at SLAC—will
provide high-energy-density electron and positron beams with peak currents of roughly 20 …

The validity and usefulness of linear wakefield theory for electron and positron bunches is
investigated. Starting from the well-known Green's function for a cold-fluid plasma …

The production of ultrabright electron bunches using ionization injection triggered by two
transversely colliding laser pulses inside a beam-driven plasma wake is examined via three …