2026-01-30
08:01 |
Broadband characterization of the CERN-SPS driving and detuning impedance
/ de la Fuente, Elena (CERN ; Tech. U. Madrid (main)) ; Zannini, Carlo (CERN) ; Rumolo, Giovanni (CERN) ; Bartosik, Hannes (CERN) ; Mases, Ingrid (CERN ; Goethe U., Frankfurt (main)) ; González Torre, Miguel (CERN ; Tech. U. Madrid (main))
The CERN-SPS transverse impedance model plays an important role in predicting beam stability and guiding machine operation. This work advances the benchmarking of the SPS vertical impedance model through experimental investigations of mode-zero instability growth rates and intensity-dependent tune shifts as a function of chromaticity. [...]
2025 - 4 p.
- Published in : JACoW IPAC 2025 (2025) WEPM068
Fulltext: PDF;
In : International Particle Accelerator Conference (IPAC'25), Taipei, Taiwan, 1-6 June 2025, pp.WEPM068
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2026-01-30
08:01 |
Optical and laser systems for the AWAKE run $^{2}$C experiment
/ Granados, Eduardo (CERN) ; Latina, Andrea (CERN) ; Eager, Anton (CERN) ; Groussin, Baptiste (CERN) ; Woolley, Benjamin (CERN) ; Gschwendtner, Edda (CERN) ; Martinez-Calderon, Miguel (CERN) ; Chritin, Nicolas (CERN) ; Mazzoni, Stefano (CERN) ; Doebert, Steffen (CERN) et al.
In the AWAKE Run 2c experiment, two electron beams are injected into two separate rubidium (Rb) vapour sources. The first electron beam initiates the self-modulation of a proton bunch in the first vapour source, while the second electron beam serves as a witness beam for plasma wakefield acceleration with low energy spread in the second vapour source. [...]
2025 - 4 p.
- Published in : JACoW IPAC 2025 (2025) TUPS111
Fulltext: PDF;
In : International Particle Accelerator Conference (IPAC'25), Taipei, Taiwan, 1-6 June 2025, pp.TUPS111
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2026-01-30
08:01 |
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2026-01-30
08:01 |
Towards operational optics measurements with AC Dipole excitations in the CERN SPS
/ Zisopoulos, Panagiotis (CERN) ; Maclean, Ewen (CERN) ; Dilly, Joschua (CERN) ; Paraschou, Konstantinos (CERN) ; Hostettler, Michi (CERN)
In the CERN Super Proton Synchrotron (SPS), a new AC dipole excitation functionality has been implemented with the aid of the Beam-Based Feedback and Diagnostic Systems. This feature facilitates precise and systematic optics measurements, presenting a robust alternative to the conventional single-kick excitation method. [...]
2025 - 4 p.
- Published in : JACoW IPAC 2025 (2025) WEPM108
Fulltext: PDF;
In : International Particle Accelerator Conference (IPAC'25), Taipei, Taiwan, 1-6 June 2025, pp.WEPM108
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2026-01-29
07:14 |
A radiation-resistant distributed temperature sensor for CERN’s accelerators
/ Di Francesca, Diego (CERN) ; Blanc, Jeremy (CERN) ; Colaco, Flavien (CERN) ; Contini, Lorenzo (CERN) ; Dole, Michael (CERN) ; Evrard, Sebastien (CERN) ; Fernandez, Julien (CERN) ; Kallada Janardhan, Rahul (CERN) ; Nissen, Henrik (CERN) ; Ricci, Daniel (CERN) et al.
Optical Fibre Sensors (OFS) possess unique features, such as high sensitivity, versatility, and the ability to operate in harsh radiation environments. Distributed OFS are notable for enabling real-time monitoring over large-scale facilities, making them ideal for applications in particle accelerators. [...]
2025 - 4 p.
- Published in : JACoW IPAC 2025 (2025) THPB034
Fulltext: PDF;
In : International Particle Accelerator Conference (IPAC'25), Taipei, Taiwan, 1-6 June 2025, pp.THPB034
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2026-01-27
07:46 |
Electron cloud mitigation techniques for the FCC-ee
/ Sabato, Luca (Ecole Polytechnique, Lausanne) ; Bartosik, Hannes (CERN) ; Carli, Christian (CERN) ; Iadarola, Giovanni (CERN) ; Mether, Lotta (CERN) ; Pieloni, Tatiana (Ecole Polytechnique, Lausanne) ; Zimmermann, Frank (CERN)
The Future Circular Collider (FCC)-ee is a planned electron-positron collider under development. The future collider would be built in an about 91 km ring-shaped underground tunnel located beneath the French departments of Haute-Savoie and Ain, and the Swiss canton of Geneva. [...]
2025 - 4 p.
- Published in : JACoW IPAC 2025 (2025) WEPS050
Fulltext: PDF;
In : International Particle Accelerator Conference (IPAC'25), Taipei, Taiwan, 1-6 June 2025, pp.WEPS050
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2026-01-27
07:46 |
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2026-01-24
06:36 |
Status of the CERN optics measurement and correction analysis tools
/ Dilly, Joschua (CERN) ; Wegscheider, Andreas (CERN) ; Maclean, Ewen (CERN) ; Carlier, Felix (CERN) ; Soubelet, Felix (CERN) ; Gray, Joshua (CERN) ; Le Garrec, Mael (CERN) ; Tomas, Rogelio (CERN) ; Horney, Sasha (CERN) ; Persson, Tobias (CERN)
With a change in the LHC machine optics foreseen for 2025 and the possible reduction of beta-star, optics commissioning will become even more of a challenge for the CERN Optics Measurement and Correction (OMC) team. In particular, the increased sensitivity of the optics to non-linear imperfections, requiring a plethora of accurate measurements, is expected to be a time consuming task. [...]
2025 - 4 p.
- Published in : JACoW IPAC 2025 (2025) 1972
Fulltext: PDF;
In : International Particle Accelerator Conference (IPAC'25), Taipei, Taiwan, 1-6 June 2025, pp.1972
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2026-01-24
06:36 |
Application of distributed temperature sensor for fire and cryogenic leak detection in accelerator tunnels
/ Dole, Michael (CERN) ; Di Francesca, Diego (CERN) ; Nissen, Henrik (CERN) ; Blanc, Jeremy (CERN) ; Bremer, Johan (CERN) ; FERNANDEZ, Julien (CERN) ; Dufay-Chanat, Laetitia (CERN) ; Contini, Lorenzo (CERN) ; Van de veire, Matthias (CERN) ; Rios, Oriol (CERN) et al.
High-energy accelerators like CERN’s Large Hadron Collider (LHC) present hazards characterized by temperature variations such as cryogenic leak or fire. Considering that LHC tunnels are large, underground, and radioactive areas, alternatives to traditional systems are explored to improve hazard detection. [...]
2025 - 4 p.
- Published in : JACoW IPAC 2025 (2025) 2996
Fulltext: PDF;
In : International Particle Accelerator Conference (IPAC'25), Taipei, Taiwan, 1-6 June 2025, pp.2996
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2026-01-24
06:36 |
Longitudinal beam coupling impedance of unshielded pumping manifolds at the CERN PS
/ Neroni, Michela (U. Rome La Sapienza (main) ; CERN) ; Damerau, Heiko (U. Rome La Sapienza (main) ; CERN) ; Ferreira Somoza, Jose (U. Rome La Sapienza (main) ; CERN) ; Flowerdew, Jake (U. Rome La Sapienza (main) ; CERN) ; Lasheen, Alexandre (U. Rome La Sapienza (main) ; CERN) ; Popovic, Branko (Argonne, PHY) ; Santos, Miguel (U. Rome La Sapienza (main) ; CERN) ; Vollinger, Christine (U. Rome La Sapienza (main) ; CERN)
The High-Luminosity LHC (HL-LHC) project aims at increasing beam intensity, hence posing tight constraints on its injector chain. A critical issue in the Proton Synchrotron (PS) is the contribution of numerous pumping manifolds to the longitudinal beam coupling impedance at high frequencies. [...]
2025 - 4 p.
- Published in : JACoW IPAC 2025 (2025) 2310
Fulltext: PDF;
In : International Particle Accelerator Conference (IPAC'25), Taipei, Taiwan, 1-6 June 2025, pp.2310
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