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Undulator Spectra: Computer Simulations and Modeling

This paper presents a systematic study of the properties of spectra generated by transverse undulators in storage rings. These include far-field intensity spectra, polarization profiles, and phase-space effects. A systematic presentation of the w-e plot is made and practical formulas are given for estimating phase-space emittance effects in the far field. First, the above parameter studies are done for transverse undulators with ideal sinusoidal trajectories, then several results for actual, real-life trajectories are presented. Brief discussions of the limitations of prior undulator modelling are also given.