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APS » Journals » Phys. Rev. Lett. » Volume 88 » Issue 12
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Phys. Rev. Lett. 88, 124801 (2002) [4 pages]

Single-Shot Electron-Beam Bunch Length Measurements

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I. Wilke
Universität Hamburg, Institut für Angewandte Physik, Jungiusstrasse 11, 20355 Hamburg, Germany

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

G. Berden, G. M. H. Knippels, and A. F. G. van der Meer
FOM Institute for Plasma Physics “Rijnhuizen,” Edisonbaan 14, 3439 MN Nieuwegein, The Netherlands

Received 10 September 2001; published 6 March 2002

We report subpicosecond electro-optic measurements of the length of individual relativistic electron bunches. The longitudinal electron-bunch shape is encoded electro-optically on to the spectrum of a chirped laser pulse. The electron-bunch length is determined by analyzing individual laser-pulse spectra obtained with and without the presence of an electron bunch. Since the length of the chirped laser pulse can be easily changed, the electron bunch can be visualized on different time scales. This single-shot imaging technique is a promising method for real-time electron-bunch diagnostics.

© 2002 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.88.124801
DOI:
10.1103/PhysRevLett.88.124801
PACS:
41.75.Ht, 41.60.Cr, 41.85.Ew, 42.65.Re
 
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