Journal Article

PUBDB-2015-03988

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Terahertz-driven linear electron acceleration

Nanni, E. A. (Corresponding author) ; Huang, W. R. ; Hong, K.-H. ; Ravi, K.>Extern* ; Fallahi, A.CFEL*DESY* ; Moriena, G. ; Dwayne Miller, R. J.CFEL* ; Kaertner, F. (Corresponding author)CFEL*DESY*

2015
Nature Publishing Group London

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Please use a persistent id in citations: doi:10.1038/ncomms9486  doi:10.3204/PUBDB-2015-03988

Abstract: The cost, size and availability of electron accelerators are dominated by the achievable accelerating gradient. Conventional high-brightness radio-frequency accelerating structures operate with 30–50 MeV m$^{-1}$gradients. Electron accelerators driven with optical or infrared sources have demonstrated accelerating gradients orders of magnitude above that achievable with conventional radio-frequency structures. However, laser-driven wakefield accelerators require intense femtosecond sources and direct laser-driven accelerators suffer from low bunch charge, sub-micron tolerances and sub-femtosecond timing requirements due to the short wavelength of operation. Here we demonstrate linear acceleration of electrons with keVenergy gain using optically generated terahertz pulses. Terahertz-driven accelerating structures enable high-gradient electron/proton accelerators with simple accelerating structures, high repetition rates and significant charge per bunch. These ultra-compact terahertz accelerators with extremely short electron bunches hold great potential to have a transformative impact for free electron lasers, linear colliders, ultrafast electron diffraction, X-ray science and medical therapy with X-rays and electron beams.

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Contributing Institute(s):

1. Ultrafast Lasers & X-rays Division (FS-CFEL-2)

Research Program(s):

1. 631 - Accelerator R & D (POF3-631) (POF3-631)
2. AXSIS - Frontiers in Attosecond X-ray Science: Imaging and Spectroscopy (609920) (609920)
3. CUI - Hamburger Zentrum für ultraschnelle Beobachtung (194651731) (194651731)

Experiment(s):

1. Experiments at CFEL

Appears in the scientific report 2015

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