Phys. Rev. E 77, 056402 (2008) [6 pages]Betatron oscillations of electrons accelerated in laser wakefields characterized by spectral x-ray analysisReceived 27 July 2006; revised 18 February 2008; published 7 May 2008 Relativistic electrons accelerated by laser wakefields can produce x-ray beams from their motion in plasma termed betatron oscillations. Detailed spectral characterization is presented in which the amplitude of the betatron oscillations r is studied by numerical analysis of electron and x-ray spectra measured simultaneously. We find that r reaches as low as 1 μm in agreement with previous studies of radiation based on coherence and far-field spatial profile. © 2008 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevE.77.056402
DOI:
10.1103/PhysRevE.77.056402
PACS:
52.38.Ph, 52.25.Os, 52.50.Dg
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