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CERN SPS Dilution Kicker Vacuum Pressure Behaviour under Unprecedented Beam Brightness
/ Velotti, Francesco (CERN) ; Barnes, Michael (CERN) ; Bartmann, Wolfgang (CERN) ; Bartosik, Hannes (CERN) ; Carlier, Etienne (CERN) ; Favia, Giorgia (CERN) ; Karpov, Ivan (CERN) ; Li, Kevin (CERN) ; Magnin, Nicolas (CERN) ; Mether, Lotta (CERN) et al.
The Super Proton Synchrotron (SPS) is the second largest synchrotron at CERN and produces high-brightness beams for the Large Hadron Collider (LHC). Recently, the dilution kicker (MKDH) of the SPS beam dump system (SBDS) has demonstrated unanticipated behaviour under high beam brightness conditions. [...]
2024 - 4 p.
- Published in : JACoW HB 2023 (2024) 447-450
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.447-450
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2.
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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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3.
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4.
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Early Fire Detection in High Power Equipment
/ Pavis, Steven (CERN) ; Carlier, Etienne (CERN) ; Lolliot, Christophe (CERN) ; Magnin, Nicolas (CERN)
Very early fire detection in equipment cabinets containing high power supply sources and power electronic switching devices is needed when building and tunnel fire detection systems may not be well placed to detect a fire until it is well established. Highly sensitive aspirating smoke detection systems which continuously sample the air quality inside equipment racks and give local power interlock in the event of smoke detection, are capable of cutting the source of power to these circuits at a very early stage, thereby preventing fires before they become fully established. [...]
2023 - 5 p.
- Published in : JACoW ICALEPCS 2023 (2023) TUPDP096
Fulltext: PDF;
In : 19th International Conference on Accelerator and Large Experimental Physics Control Systems (ICALEPCS 2023), Cape Town, South Africa, 7 - 13 Oct 2023, pp.TUPDP096
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5.
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A Modular Approach for Accelerator Controls Components Deployment for High Power Pulsed Systems
/ Pavis, Steven (CERN) ; Barlow, Roger (CERN) ; Boucly, Christophe (CERN) ; Carlier, Etienne (CERN) ; Chanavat, Christophe (CERN) ; Lolliot, Christophe (CERN) ; Magnin, Nicolas (CERN) ; Van Trappen, Pieter (CERN) ; Voumard, Nicolas (CERN)
As part of the LHC Injector Upgrade (LIU) project, the controls of the PSB and PS injection kickers at CERN have been upgraded during Long Shutdown 2 (LS2) from heterogeneous home-made electronic solutions to a modular and open architecture. Despite both kickers have significantly different functionalities, topologies and operational requirements, standardized hardware and software control blocks have been used for both systems. [...]
2023 - 5 p.
- Published in : JACoW ICALEPCS 2023 (2023) TUPDP101
Fulltext: PDF;
In : 19th International Conference on Accelerator and Large Experimental Physics Control Systems (ICALEPCS 2023), Cape Town, South Africa, 7 - 13 Oct 2023, pp.TUPDP101
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6.
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LHC Oxygen Run Preparation in the CERN Injector Complex
/ Slupecki, Maciej (CERN) ; Aguglia, Davide (CERN) ; Aguiar, Ygor (Universite Jean Monnet (FR)) ; Alemany Fernandez, Reyes (CERN) ; Argyropoulos, Theodoros (CERN) ; Barlow, Roger Andrew (CERN) ; Bartosik, Hannes (CERN) ; Bellodi, Giulia (CERN) ; Bilko, Kacper (Universite Jean Monnet (FR)) ; Borburgh, Jan (CERN) et al.
The Ion Accelerator Complex, composed of a linear accelerator (Linac3) and a chain of synchrotrons (Low Energy Ion Ring: LEIR, Proton Synchrotron: PS, Super Proton Synchrotron: SPS and the Large Hadron Collider: LHC) will operate oxygen ion beams for Oxygen–Oxygen (O–O) and proton–Oxygen (p–O) collisions in the LHC in Run 3. [...]
CERN-ACC-NOTE-2024-0001.
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2024. - 29 p.
Full text
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SPS Beam Dump System (SBDS) Commissioning After Relocation and Upgrade
/ Van Trappen, Pieter (CERN) ; Carlier, Etienne (CERN) ; Ducimetière, Laurent (CERN) ; Namora, Vasco (CERN) ; Senaj, Viliam (CERN) ; Velotti, Francesco (CERN) ; Voumard, Nicolas (CERN)
In order to overcome several machine limitations, the SBDS has been relocated from LSS1 (Long Straight Section 1) to LSS5 during LS2 (Long Shutdown 2) with an important upgrade of the extraction kicker installation. An additional vertical deflection kicker magnet (MKDV) was produced and installed while the high voltage (HV) pulse generators have been upgraded by changing gas-discharge switches (thyratrons and ignitrons) to semiconductor stacks operating in oil. [...]
2022 - 3 p.
- Published in : JACoW IPAC 2022 (2022) 2530-2532
Fulltext: PDF;
In : 13th International Particle Accelerator Conference (IPAC 2022), Bangkok, Thailand, 12 - 17 Jun 2022, pp.2530-2532
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Overview of the Machine Learning and Numerical Optimiser Applications on Beam Transfer Systems for LHC and Its Injectors
/ Velotti, Francesco (CERN) ; Barnes, Michael (CERN) ; Carlier, Etienne (CERN) ; Dutheil, Yann (CERN) ; Fraser, Matthew (CERN) ; Goddard, Brennan (CERN) ; Magnin, Nicolas (CERN) ; Ramjiawan, Rebecca (CERN) ; Renner, Elisabeth (CERN) ; Van Trappen, Pieter (CERN) et al.
Machine learning and numerical optimisation algorithms are getting more and more popular in the accelerator physics community and, thanks to the computing power available, their application in daily operation more likely. In the CERN accelerator complex, and specifically on the beam transfer systems, many promising exploitation of these numerical tools have been put in place in the last years. [...]
2022 - 4 p.
- Published in : JACoW IPAC 2022 (2022) 961-964
Fulltext: PDF;
In : 13th International Particle Accelerator Conference (IPAC 2022), Bangkok, Thailand, 12 - 17 Jun 2022, pp.961-964
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Achievements and Performance Prospects of the Upgraded LHC Injectors
/ Kain, Verena (CERN) ; Albright, Simon (CERN) ; Alemany-Fernández, Reyes (CERN) ; Angoletta, Maria Elena (CERN) ; Antoniou, Fanouria (CERN) ; Argyropoulos, Theodoros (CERN) ; Asvesta, Foteini (CERN) ; Balhan, Bruno (CERN) ; Barnes, Michael (CERN) ; Barrientos, Diego (CERN) et al.
To provide HL-LHC performance, the CERN LHC injector chain underwent a major upgrade during an almost 2-year-long shutdown. In the first half of 2021 the injectors were gradually re-started with the aim to reach at least pre-shutdown parameters for LHC as well as for fixed target beams. [...]
2022 - 6 p.
- Published in : JACoW IPAC 2022 (2022) 1610-1615
Fulltext: PDF;
In : 13th International Particle Accelerator Conference (IPAC 2022), Bangkok, Thailand, 12 - 17 Jun 2022, pp.1610-1615
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Deployment and Commissioning of the CERN PS Injection Kicker System for Operation with 2 GeV Beams in Short Circuit Mode
/ Kramer, Thomas (CERN) ; Ayala Cintas, Nuria (CERN) ; Borburgh, Jan (CERN) ; Burkel, Peter (CERN) ; Carlier, Etienne (CERN) ; Ducimetière, Laurent (CERN) ; Feliciano, Luís M C (CERN) ; Ferrero Colomo, Álvaro (CERN) ; Fraser, Matthew A (CERN) ; Govertsen, Leif A (CERN) et al.
Within the framework of the LHC Injector Upgrade (LIU) project, the feasibility and design of an upgrade of the existing CERN PS proton injection kicker system have been outlined in previous publications already. This paper describes the adjustments of final design choices, testing, and deployment as well as the validation and commissioning of the new 2 GeV injection kicker system. [...]
Geneva : JACoW, 2021 - 4 p.
- Published in : JACoW IPAC 2021 (2021) 4489-4492
Fulltext: PDF;
In : 12th International Particle Accelerator Conference (IPAC 2021), Online, 24 - 28 May 2021, pp.4489-4492
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