Linear undular brightness: Sextupolar magnetic-field contributions and higher-orders energy corrections for low-energy electron beams
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In this paper we discuss the modifications to the undulator brightness and central wavelength expressions due to the low-energy effects and to the inclusion of the sextupolar magnetic-field components. The corrections are calculated up to the order (K/γ)4. The mathematical details are simplified by the use of generalized Bessel functions.
PACS 41.70Particles in electromagnetic fields (including synchrotron radiation)
PACS 41.80Particle beams and particle optics
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