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APS » Journals » Phys. Rev. Lett. » Volume 85 » Issue 16
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Phys. Rev. Lett. 85, 3404–3407 (2000)

Subpicosecond Electro-optic Measurement of Relativistic Electron Pulses

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X. Yan*, A. M. MacLeod, and W. A. Gillespie
School of Science and Engineering, University of Abertay Dundee, Bell Street, Dundee DD1 1HG, United Kingdom

G. M. H. Knippels, D. Oepts, and A. F. G. van der Meer
FOM–Instituut voor Plasmafysica “Rijnhuizen,” P.O. Box 1207, 3430 BE, Nieuwegein, The Netherlands

W. Seidel
Forschungszentrum Rossendorf, Institute for Nuclear and Hadron Physics, P.O. Box 51 01 19, 01314 Dresden, Germany

Received 31 May 2000; published in the issue dated 16 October 2000

Time-resolved measurements of the transverse electric field associated with relativistic electron bunches are presented. Using an ultrafast electro-optic sensor close to the electron beam, the longitudinal profile of the electric field was measured with subpicosecond time resolution and without time-reversal ambiguity. Results are shown for two cases: inside the vacuum beam line in the presence of wake fields, and in air behind a beryllium window, effectively probing the near-field transition radiation. Especially in the latter case, reconstruction of the longitudinal electron bunch shape is straightforward.

© 2000 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.85.3404
DOI:
10.1103/PhysRevLett.85.3404
PACS:
41.75.Ht, 41.60.Cr, 41.85.Ew

*Corresponding author: FOM Institute for Plasma Physics “Rijnhuizen,” P.O. Box 1207, 3430 BE, Nieuwegein, The Netherlands. Email address: lynn@rijnh.nl

 
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