Studies of charged-particle acceleration processes remain one of the most important areas
of research in laboratory, space and astrophysical plasmas. In this paper, we present the …

An intense, high-energy electron or positron beam can have focused intensities rivaling
those of today's most powerful laser beams. For example, the 5 ps (full-width, half …

The energy frontier of particle physics is several trillion electron volts, but colliders capable
of reaching this regime (such as the Large Hadron Collider and the International Linear …

A method, which utilizes the large difference in ionization potentials between successive
ionization states of trace atoms, for injecting electrons into a laser-driven wakefield is …

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 …

Hollow plasma channels are attractive for lepton acceleration because they provide intrinsic
emittance preservation regimes. However, beam breakup instabilities dominate the …

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 …

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 …

Plasma wakefields are both excited and probed by propagating an intense 28.5 GeV
positron beam through a 1.4 m long lithium plasma. The main body of the beam loses …

Electron dynamics in plasma-focusing channels has important applications to new plasma
technologies, such as advanced accelerators, 1 novel radiation sources, and new types of …