High Quality Electron Beams from Laser Wakefield Acceleration: A New Compact Source for Electron Microscopes?

Ultralow emittance electron beams from a laser-wakefield accelerator

Tunable monoenergetic electron beams from independently controllable laser-wakefield acceleration and injection

The Production of High Quality Electron Beams in the Alpha-x Laser Wakefield Accelerator

The ALPHA-X laser wakefield accelerator beam line comprises a high power (900 mJ, 35 fs) Ti:sapphire laser pulse, a gas jet (length 2 mm, plasma density ~ 10 cm) accelerating structure and a suite of single-shot electron beam diagnostics. Monoenergetic electron beams with central energy up to 220 MeV are generated in the accelerator. By operating close to the threshold for injection with low be...

Characteristics of Electron Acceleration in a Self-modulated Laser Wakefield

Acceleration of electrons by an electron plasma wave has been of great current interest because of its much larger acceleration gradient than that of conventional rf linacs [1]. Several methods have been proposed for driving a largeamplitude fast-phase-velocity plasma wave [1]. In the Laser Wake-Field Accelerator (LWFA), an electron plasma wave is driven resonantly by a short laser pulse throug...

Laser-wakefield acceleration of monoenergetic electron beams in the first plasma-wave period.

Beam profile measurements of laser-wakefield accelerated electron bunches reveal that in the monoenergetic regime the electrons are injected and accelerated at the back of the first period of the plasma wave. With pulse durations ctau >or= lambda(p), we observe an elliptical beam profile with the axis of the ellipse parallel to the axis of the laser polarization. This increase in divergence in ...