| Title |
Compassion of Higher Order Modes Damping Techniques for Superconducting 9-Cell Structure |
| Authors |
- Ya.V. Shashkov, A.A. Mitrofanov, N.P. Sobenin
MEPhI, Moscow, Russia
- V. Zvyagintsev
TRIUMF, Vancouver, Canada
|
| Abstract |
Modern types of accelerators, such as Energy recovery linacs, require low values of higher order modes (HOM) Qext. In accelerators with high current HOM could lead to high losses for the modes excitation, beam instability and beam break up. HOM couplers and waveguides are often used in such structures for HOM damping. Unfortunately they could lead to a violation of the axial symmetry of the accelerating field and negatively affect the beam emittance. Also these devices are subject for multipactor discharge and could be difficult in maintaining and fabrication. In this paper we examine several ways of HOM damping with ridged, fluted and corrugated drift tubes which are devoid of the above-mentioned drawbacks. The influence of the parameters of the drift tube on the HOM damping and on the parameters of the fundamental wave were analyzed.
|
| Footnotes & References |
Higher order modes, ERL, SRF |
| Funding |
Work supported by Ministry of Education and Science grant 3.245.2014/r |
| Paper |
download WEPMN046.PDF [2.402 MB / 3 pages] |
| Export |
download ※ BibTeX
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※ EndNote |
| Conference |
IPAC2015, Richmond, VA, USA |
| Series |
International Particle Accelerator Conference (6th) |
| Proceedings |
Link to full IPAC2015 Proccedings |
| Session |
Wednesday Posters (Monroe) |
| Date |
06-May-15 16:00–18:00 |
| Main Classification |
7: Accelerator Technology |
| Sub Classification |
T07 - Superconducting RF |
| Keywords |
HOM, damping, quadrupole, cavity, dipole |
| Publisher |
JACoW, Geneva, Switzerland |
| Editors |
Stuart Henderson (ANL, Argonne, IL, USA); Evelyn Akers (Jlab, Newport News, VA, USA); Todd Satogata (JLab, Newport News, VA, USA); Volker R.W. Schaa (GSI, Darmstadt, Germany) |
| ISBN |
978-3-95450-168-7 |
| Published |
June 2015 |
| Copyright |
|
