| Article | |
| Title | Probing Transverse Impedances in the High Frequency Range at the CERN SPS |
| Author(s) | de la Fuente, Elena (CERN ; Tech. U. Madrid (main)) ; Bartosik, Hannes (CERN) ; Mases Solé, Ingrid (CERN ; Goethe U., Frankfurt (main)) ; Rumolo, Giovanni (CERN) ; Zannini, Carlo (CERN) |
| Publication | 2024 |
| Number of pages | 4 |
| In: | JACoW HB 2023 (2024) 393-396 |
| In: | 68th ICFA Advanced Beam Dynamics workshop on high-Intensity and High-Brightness Hadron Beams (HB 2023), CERN, Geneva, Switzerland, 9 - 13 Oct 2023, pp.393-396 |
| DOI | 10.18429/JACoW-HB2023-THAFP01 |
| Subject category | Accelerators and Storage Rings |
| Abstract | The SPS transverse impedance model, which includes the major impedance contributions in the machine, can be benchmarked through measurements of the Head-Tail mode zero instability. Since the SPS works above transition energy, the head tail mode zero is unstable for negative values of chromaticity. The measured instability growth rate is proportional to the real part of the transverse impedance. Studies performed after the LHC Injectors Upgrade (LIU) showed a relevant impedance around 2 GHz with high-gamma transition optics (Q26). This paper presents the follow-up studies to probe the behavior of this beam coupling impedance contribution. |
| Copyright/License | © 2024 the author(s) (License: CC-BY-3.0) |
Corresponding record in: Inspire
Record creato 2024-06-18, modificato l'ultima volta il 2024-06-18
