High Brightness Electron Beam Diagnostics and their ... - CASA

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-1.0
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Mirror Position ( m)
Wavenumber (cm -1 50
Average
(A) 45 (B)
alongwiththecorrespondingpowerspectrum(B). Figure5.17:Symmetrizationoftheautocorrelationbydierentmethods(A)(seetextfordetail)
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Autocorrelation (a.u.)
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Wavenumber (cm -1 35
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Figure5.18:Energyspectrumobtainedbyconsideringdierentnumbersofdatapointsfromthe
25
autocorrelation.Thenumbersareallpowersoftwo,asrequiredbytheFFTalgorithmweused.
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Energy Spectrum (a.u.)
Energy Spectrum (a.u.)
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128 points
256 points
512 points