Published December 9, 2013 | Version v1
Journal article

Control of seeding phase for a cascaded laser wakefield accelerator with gradient injection

  • 1. State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences (CAS), Shanghai 201800 (China)

Description

We demonstrated experimentally the seeding-phase control for a two-stage laser wakefield accelerator with gradient injection. By optimizing the seeding phase of electrons into the second stage, electron beams beyond 0.5 GeV with a 3% rms energy spread were produced over a short acceleration distance of ∼2 mm. Peak energy of the electron beam was further extended beyond 1 GeV by lengthening the second acceleration stage to 5 mm. Time-resolved magnetic field measurements via magneto-optical Faraday polarimetry allowed us to monitor the processes of electron seeding and acceleration in the second stage

Additional details

Identifiers

Publishing Information

Journal Title
Applied Physics Letters
Journal Volume
103
Journal Issue
24
Journal Page Range
p. 243501-243501.5
ISSN
0003-6951
CODEN
APPLAB

Optional Information

Notes
(c) 2013 AIP Publishing LLC