Speaker
Iago Carvalho de Almeida
(Brazilian Synchrotron Light Laboratory)
Description
Beamlines of modern synchrotron light sources demand the installation of long undulators with small gaps in the storage ring. The vacuum chamber of these devices requires time-consuming wakefield simulations for impedance estimation. Furthermore, these structures can exhibit trapped modes, demanding extensive eigenmode simulations for impedance characterization. This paper presents a method to estimate a conservative impedance envelope for trapped modes from a longitudinally reduced geometry, reducing both computational time and numerical artifacts inherent to long simulations. The proposed methodology is validated through the impedance analysis of the APPLE-2 undulator for the SIRIUS IPE beamline.
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Author
Iago Carvalho de Almeida
(Brazilian Synchrotron Light Laboratory)
Co-authors
André Pontes Barbosa Lima
(Brazilian Synchrotron Light Laboratory)
Fernando Henrique de Sá
(Brazilian Synchrotron Light Laboratory)