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Observation of two-dimensional longitudinal-transverse correlations in an electron beam by laser-electron interactions
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics. (Acceleratorfysik)
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics. (Acceleratorfysik)
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2008 (English)In: Physical Review Special Topics. Accelerators and Beams, ISSN 1098-4402, E-ISSN 1098-4402, Vol. 11, no 7, 070702- p.Article in journal (Refereed) Published
Abstract [en]

During the preparatory work for the optical replica synthesizer experiment in the free-electron laser FLASH at DESY we were able to superimpose a short, approximately 200 fs long pulse from a frequency-doubled mode-locked erbium laser with Titanium-Sapphire amplifier and an approximately 20 ps long electron bunch in an undulator. This induces an energy modulation in a longitudinal slice of the electron bunch. A magnetic chicane downstream of the undulator converts the energy modulation into a density modulation within the slice that causes the emission of coherent optical transition radiation from a silver-coated silicon screen. Varying the relative timing between electron and laser we use a camera to record two-dimensional images of the slices as a function of the longitudinal position within the electron bunch.

Place, publisher, year, edition, pages
2008. Vol. 11, no 7, 070702- p.
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:uu:diva-17589DOI: 0.1103/PhysRevSTAB.11.070702ISI: 000259352700003OAI: oai:DiVA.org:uu-17589DiVA: diva2:45360
Available from: 2008-07-10 Created: 2008-07-10 Last updated: 2017-12-08Bibliographically approved

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