Electron diffraction using ultrafast electron bunches from a laser-wakefield accelerator at kHz repetition rate

Journal Article · Mon Feb 11 00:00:00 EST 2013 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4792057· OSTI ID:22162744

He, Z. -H.; Thomas, A. G. R.; Nees, J. A.; Hou, B.; Krushelnick, K. ^[1]; Beaurepaire, B.; Malka, V.; Faure, J. ^[2]

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1. Center for Ultrafast Optical Science, University of Michigan, Ann Arbor, Michigan 48106-2099 (United States)
2. Laboratoire d'Optique Appliquee, ENSTA-CNRS-Ecole Polytechnique, UMR 7639, 91761 Palaiseau (France)

We show that electron bunches in the 50-100 keV range can be produced from a laser wakefield accelerator using 10 mJ, 35 fs laser pulses operating at 0.5 kHz. It is shown that using a solenoid magnetic lens, the electron bunch distribution can be shaped. The resulting transverse and longitudinal coherence is suitable for producing diffraction images from a polycrystalline 10 nm aluminum foil. The high repetition rate, the stability of the electron source, and the fact that its uncorrelated bunch duration is below 100 fs make this approach promising for the development of sub-100 fs ultrafast electron diffraction experiments.

• OSTI ID: 22162744
• Journal Information: Applied Physics Letters, Vol. 102, Issue 6; Other Information: (c) 2013 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
BEAM BUNCHING
DISTRIBUTION
ELECTRON BEAMS
ELECTRON DIFFRACTION
ELECTRON SOURCES
FOILS
KEV RANGE 10-100
LASER RADIATION
PARTICLE BEAMS
POLYCRYSTALS
SOLENOIDS
STABILITY
WAKEFIELD ACCELERATORS