| Title |
Optics for Landau Damping with Minimized Octupolar Resonances in the LHC |
| Authors |
- R. Tomás García, F.S. Carlier, L. Deniau, J. Dilly, J. Keintzel, S. Kostoglou, M. Le Garrec, E.H. Maclean, K. Paraschou, T.H.B. Persson, F. Soubelet, A. Wegscheider
CERN, Meyrin, Switzerland
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| Abstract |
Operation of the Large Hadron Collider (LHC) requires strong octupolar magnetic fields to suppress coherent beam instabilities. The amplitude detuning that is generated by these octupolar magnetic fields brings the tune of individual particles close to harmful resonances, which are mostly driven by the octupolar fields themselves. In 2023, new optics were deployed in the LHC at injection with optimized betatronic phase advances to minimize the resonances from the octupolar fields without affecting the amplitude detuning. This paper reports on the optics design, commissioning and the lifetime measurements performed to validate the optics.
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| Paper |
download THBP20.PDF [1.125 MB / 4 pages] |
| Cite |
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※ EndNote |
| Conference |
HB2023 |
| Series |
ICFA Advanced Beam Dynamics Workshop on High-Intensity and High-Brightness Hadron Beams (68th) |
| Location |
Geneva, Switzerland |
| Date |
09-13 October 2023 |
| Publisher |
JACoW Publishing, Geneva, Switzerland |
| Editorial Board |
Volker R.W. Schaa (GSI, Darmstadt, Germany); Jan Chrin (PSI, Villigen, Switzerland); Massimo Giovannozzi (CERN, Geneva, Switzerland); Dong Eon Kim (PAL, Pohang, South Korea); Marten H. Koopmans (CERN, Geneva, Switzerland); Anton Lechner (CERN, Geneva, Switzerland); Philippe Schoofs (CERN, Geneva, Switzerland) |
| Online ISBN |
978-3-95450-253-0 |
| Online ISSN |
2673-5571 |
| Received |
01 October 2023 |
| Revised |
07 October 2023 |
| Accepted |
10 October 2023 |
| Issued |
23 October 2023 |
| DOI |
doi:10.18429/JACoW-HB2023-THBP20 |
| Pages |
503-506 |
| Copyright |
 Published by JACoW Publishing under the terms of the Creative Commons Attribution 4.0 International license. Any further distribution of this work must maintain attribution to the author(s), the published article's title, publisher, and DOI. |
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