Investigation of option for damping trapped IVU resonances
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Date
2018-05-01
Journal Title
Journal ISSN
Volume Title
Publisher
JACoW Publishing
Abstract
Trapped resonances have been observed within the three In-Vacuum Undulators (IVUs) insertion devices at the Australian Synchrotron. These resonances can create vertical beam instability if not controlled through transverse feedback systems. Similar resonances have been observed at other synchrotron light sources around the world. Under certain conditions of undulator gap, these resonances can couple quite strongly to the beam, requiring high feedback gain. An investigation of the resonances has been carried out using 3D eigenmode and wakefield simulations to understand the resonances and determine the effectiveness of various schemes for modifying the damping the resonances. © 2018 The Authors - CC-BY 3.0 licence
Description
Keywords
Resonance, Wiggler magnets, ANSTO, Australian organizations, Synchrotrons, Light sources, Wakefield accelerators
Citation
Dowd, R. T. Chi, J., & Pelz, D. (2018). Investigation of option for damping trapped IVU resonances. Paper presented to IPAC2018: 9th International Particle Accelerator Conference, Vancouver, Canada, April 29-May 4, 2018. In S. Koscielniak, T. Satogata, V. R. W. Schaa, & J. Thomson, (Eds.), Proceedings of the 9th International Particle Accelerator Conference. Geneva:JACoW Publishing. (pp. 1296). doi:10.18429/JACoW-IPAC2018-TUPMF021