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Performance of the Beam Gas Curtain as emittance monitor at the Large Hadron Collider
/ Butti, Daniele (CERN) ; Lefevre, Thibaut (CERN) ; Mazzoni, Stefano (CERN) ; Pasquino, Chiara (CERN) ; Schneider, Gerhard (CERN) ; Veness, Raymond (CERN) ; Sedlacek, Ondrej (U. Liverpool (main)) ; Stringer, Oliver (U. Liverpool (main) ; CERN) ; Welsch, Carsten (U. Liverpool (main)) ; Zhang, Hao (U. Liverpool (main) ; CERN) et al.
The Beam Gas Curtain (BGC) is an instrument for transverse diagnostics in operation at the Large Hadron Collider (LHC). The transverse beam profile is obtained by imaging the fluorescence light resulting from the interaction between the beam and a thin supersonic neon gas jet. [...]
2026 - 4 p.
- Published in : JACoW IBIC 2025 (2026) 346
Fulltext: PDF;
In : 14th International Beam Instrumentation Conference (IBIC 2025), Liverpool, United Kingdom, 7-11 Sep 2025, pp.346
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Low Density Wires for Beam Halo Monitoring
/ Aliana-Cervera, Gerard (CERN) ; Pasquino, Chiara (CERN) ; Veness, Raymond (CERN) ; Lunt, Alexander (Bath U.) ; Mattia, Davide (Bath U.)
Beam Halo Monitoring (BHM) is essential for high-intensity accelerators like the HL-LHC. Carbon Nanotube (CNT) wires offer a promising alternative to traditional carbon fibre scanners due to their lower density, improved thermal properties, and reduced beam interaction. [...]
2026 - 4 p.
- Published in : JACoW IBIC 2025 (2026) 517
Fulltext: PDF;
In : 14th International Beam Instrumentation Conference (IBIC 2025), Liverpool, United Kingdom, 7-11 Sep 2025, pp.517
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Mechanical design and testing of a magnetically coupled motion system for LHC wire scanners
/ Sullivan, Harry (CERN) ; Emery, Jonathan (CERN) ; Andreazza, William (CERN) ; El-Kassem, Nabil (CERN) ; Faure, Marie (CERN) ; Hamani, Morad (CERN) ; Hanson, Lewis (CERN) ; Pasquino, Chiara (CERN) ; Ramos Garcia, Maria Teresa (CERN) ; Roncarolo, Federico (CERN) et al.
Linear wire scanners are essential instruments for beam profile measurements in the Large Hadron Collider (LHC) at CERN. The current scanners installed in the machine have shown reliability and performance limitations in recent years. [...]
2026 - 4 p.
- Published in : JACoW IBIC 2025 (2026) 463
Fulltext: PDF;
In : 14th International Beam Instrumentation Conference (IBIC 2025), Liverpool, United Kingdom, 7-11 Sep 2025, pp.463
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Mechanical Design of the Beam Gas Ionisation (BGI) Beam Profile Monitor for CERN Super Proton Synchrotron
/ Ramos Garcia, Maria Teresa (CERN) ; Andreazza, William (CERN) ; Bestmann, Patrick (CERN) ; Bursali, Hikmet (CERN) ; Chritin, Nicolas (CERN) ; Devauchelle, Wilfried (CERN) ; Harrison, Anthony (CERN) ; Khatri, Ghanshyambhai (CERN) ; McLean, Mark (CERN) ; Pasquino, Chiara (CERN) et al.
The Beam Gas Ionisation (BGI) instrument of the Proton Synchrotron (PS), presently installed and operational, has been re-designed for the Super Proton Synchrotron (SPS), the following machine along the Large Hadron Collider (LHC) injector chain at CERN accelerator complex. Using the same detection technology, Timepix3, the SPS-BGI infers the beam profile from the electrons created by the ionisation of rest gas molecules and accelerated onto an imaging detector. [...]
2024 - 4 p.
- Published in : JACoW MEDSI 2023 (2024) 114-117
Fulltext: PDF;
In : 12th Mechanical Engineering Design of Synchrotron Radiation Equipment and Instrumentation (MEDSI 2023), Beijing, China, 6 - 10 Nov 2023, pp.114-117
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Non-destructive beam profile measurements with an Ionisation Profile Monitor (IPM) based on Timepix3&4 Hybrid Pixel Detectors (HPDs)
/ McLean, Mark (CERN) ; Pasquino, Chiara (CERN) ; Fleisig, Clara (CERN) ; Cabrera, Gabriela (CERN) ; Khatri, Gunn (CERN) ; Storey, James (CERN) ; Joul, Juri (CERN) ; Ramos, Maria Teresa (CERN) ; Andrezza, William (CERN)
Beam Gas Ionization monitors have been in operational use in the CERN PS for two years now, and they were installed in the SPS this year. An overview of the operating principal of the instruments is presented, followed by an update on their development. [...]
2024 - 4 p.
- Published in : JACoW IBIC 2024 (2024) WEP15
Fulltext: PDF;
In : 13th International Beam Instrumentation Conference (IBIC 2024), Beijing, China, 9-13 Sep 2024, pp.WEP15
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The Large Hadron Collider's beam wire scanner consolidation
/ Emery, Jonathan (CERN) ; Guerrero, Ana (CERN) ; Goldblatt, Aurelie (CERN) ; Pasquino, Chiara (CERN) ; Belohrad, David (CERN) ; Roncarolo, Federico (CERN) ; Sullivan, Harry (CERN) ; Tassan-Viol, Jean (CERN) ; Littoz, Laetitia (CERN) ; Ramos, Maria Teresa (CERN) et al.
To serve the needs of the High Luminosity (HL) LHC, a consolidation of the beam wire scanner has been initiated. The instrument is a crucial tool for measuring the transverse beam profile by moving a thin carbon wire across the beam. [...]
2024 - 5 p.
- Published in : JACoW IBIC 2024 (2024) WEP29
Fulltext: PDF;
In : 13th International Beam Instrumentation Conference (IBIC 2024), Beijing, China, 9-13 Sep 2024, pp.WEP29
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RF Performance Results of RF Double Quarter Wave Resonators for LHC High Luminosity Project
/ Turaj, Katarzyna (CERN) ; Bastard, Jeremy (CERN) ; Calaga, Rama (CERN) ; Calvo, Sebastien (CERN) ; Capatina, Ofelia (CERN) ; Castilla, Alejandro (CERN ; Jefferson Lab) ; Chiodini, Marco (CERN) ; Duval, Christophe (CERN) ; Edwards, Amelia (CERN ; Lancaster U.) ; Ferreira, Leonel (CERN) et al.
The LHC High Luminosity (HL-LHC) project includes, among other key items, the installation of superconducting crab cavities in the LHC machine. The Double Quarter Wave (DQW) crab cavity will be utilised to compensate for the effects of the vertical crossing angle [...]
2023 - 7 p.
- Published in : JACoW SRF 2023 (2023) 925-928
Fulltext: PDF;
In : 21st International Conference on Radio-Frequency Superconductivity (SRF 2023), Grand Rapids, MI, United States, 22 - 30 Jun 2023, pp.925-928
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Beam Performance with the LHC Injectors Upgrade
/ zannini, C (CERN) ; Wegner, R (CERN) ; Vollinger, C (CERN) ; Veness, R (CERN) ; Velotti, F (CERN) ; Sullivan, M (CERN) ; Steerenberg, R (CERN) ; Spierer, A (CERN) ; Skowronski, P (CERN) ; Sito, L (CERN) et al.
The LHC Injectors Upgrade (LIU) project was put in place between 2010 and 2021 to increase the intensity and brightness in the LHC injectors to match the challenging requirements of the High-Luminosity LHC (HL-LHC) project, while ensuring reliable operation of the injectors complex up to the end of the HL-LHC era (ca. 2040). [...]
2024 - 8 p.
- Published in : JACoW HB 2023 (2024) 1-8
Fulltext: PDF;
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.1-8
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RF Dipole Crab Cavity Testing for HL-LHC
/ Valverde Alonso, Nuria (CERN) ; Calaga, Rama (CERN) ; Calvo, Sebastien (CERN) ; Capatina, Ofelia (CERN) ; Castilla, Alejandro (CERN ; Lancaster U. (main)) ; Chiodini, Marco (CERN) ; Duval, Christophe (CERN) ; Ferreira, Leonel (CERN) ; Gourragne, Max (CERN) ; Kohler, Paul (CERN) et al.
RF Crab Cavities are an essential element of the High Luminosity LHC (HL-LHC) upgrade at CERN. Two RF dipole crab cavity used for the compensation of the horizontal crossing angle were recently manufactured and integrated into Titanium Helium tank and RF ancillaries necessary for the beam operation. [...]
2022 - 7 p.
- Published in : JACoW SRF 2021 (2022) 687-693
Fulltext: PDF;
In : 20th International Conference on RF Superconductivity (SRF 2021), Online, US, 28 Jun - 2 Jul 2021, pp.687-693
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