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New CERN SPS Beam Dump Imaging System
/ Burger, Stephane (CERN) ; Bravin, Enrico (CERN) ; Roncarolo, Federico (CERN) ; Topaloudis, Athanasios (CERN) ; Velotti, Francesco (CERN) ; Veyrunes, Eric (CERN)
As part of the LHC injector Upgrade (LIU), the CERN SPS is now equipped with a new Beam Dumping System (SBDS) designed to cope with the high power beams foreseen for the High Luminosity LHC (HL-LHC) era. Before reaching the dump, the proton beam (from 26 to 450 GeV) is vertically kicked and then diluted passing through a series of horizontal and vertical bumps. [...]
JACoW, 2021 - 5 p.
- Published in : JACoW IBIC 2021 (2021) 254-258
Fulltext: PDF;
In : 10th International Beam Instrumentation Conference (IBIC 2021), Online, Korea, 13 - 17 Sep 2021, pp.254-258
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Beam Profile Measurements as Part of the Safe and Efficient Operation of the New SPS Beam Dump System
/ Topaloudis, Athanasios (CERN) ; Bravin, Enrico (CERN) ; Burger, Stephane (CERN) ; Jackson, Stephen (CERN) ; Velotti, Francesco (CERN) ; Veyrunes, Eric (CERN)
In the framework of the LHC Injectors Upgrade (LIU) project, the Super Proton Synchrotron (SPS) accelerator at CERN is undergoing a profound upgrade including a new high-energy beam dump. The new Target Internal Dump Vertical Graphite (TIDVG#5) is designed to withstand an average dumped beam power as high as 235 kW to cope with the increased intensity and brightness of the LIU beams whose energies in the SPS range from 14 to 450 GeV. [...]
2022 - 4 p.
- Published in : JACoW ICALEPCS2021 (2022) 764-767
Fulltext: PDF;
In : 18th International Conference on Accelerator and Large Experimental Physics Control Systems, Online, 18 - 22 Oct 2021, pp.764-767
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Interlock Super Agent : Enhancing Machine Efficiency and Performance at CERN’s Super Proton Synchrotron
/ Veyrunes, Eric (CERN) ; Asko, Anti (CERN) ; Trad, Georges (CERN) ; Wenninger, Jorg (CERN)
In the CERN Super Proton Synchrotron (SPS), finding the source of an interlock signal has become increasingly unmanageable due to the complex interdependencies between the agents in both the beam interlock system (BIS) and the software interlock system (SIS). This often leads to delays, with the inefficiency in diagnosing beam stops impacting the overall performance of the accelerator. [...]
2023 - 3 p.
- Published in : JACoW ICALEPCS 2023 (2023) TUPDP103
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.TUPDP103
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Design of a Magnetic Bump Tail Scraping System for the CERN SPS
/ Mete, Öznur (CERN) ; Bauche, Jeremie (CERN) ; Cerutti, Francesco (CERN) ; Cettour Cave, Stephane (CERN) ; Cornelis, Karel (CERN) ; Drøsdal, Lene (CERN) ; Galleazzi, Frederic (CERN) ; Goddard, Brennan (CERN) ; Jensen, Lars (CERN) ; Kain, Verena (CERN) et al.
The LHC injectors are being upgraded to meet the demanding beam specification required for High Luminosity LHC (HL-LHC) operation. In order to reduce the beam losses which can trigger the sensitive LHC beam loss interlocks during the SPS-to-LHC beam injection process, it is important that the beam tails are properly scraped away in the SPS. [...]
2013 - 3 p.
- Published in : (2013) , pp. THPEA040
Fulltext: PDF; External link: Published version from JACoW
In : 4th International Particle Accelerator Conference, Shanghai, China, 12 - 17 May 2013, pp.3228
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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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Performance of the CERN Low Energy Ion Ring (LEIR) with Xenon beams
/ Alemany-Fernández, Reyes (CERN) ; Albright, Simon (CERN) ; Andujar, Oscar (CERN) ; Angoletta, Maria Elena (CERN) ; Axensalva, Jerome (CERN) ; Bartosik, Hannes (CERN) ; Baud, Guillaume (CERN) ; Biancacci, Nicolo (CERN) ; Bozzolan, Michele (CERN) ; Cettour Cave, Stephane (CERN) et al.
In 2017 the CERN Low Energy Ion Ring demonstrated once more the feasibility of injecting, accumulating, cooling and accelerating a new nuclei, $^{129}$Xe${39+}$. The operation of this new ion species started at the beginning of March with the start up of the xenon ion source and the Linac3. [...]
CERN-ACC-2018-144.-
2018 - 4 p.
- Published in : 10.18429/JACoW-IPAC2018-TUPAF020
Fulltext: PDF;
In : 9th International Particle Accelerator Conference, Vancouver, Canada, 29 Apr - 4 May 2018, pp.TUPAF020
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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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Automating beam dump failure detection using computer vision
/ Huhn, Francisco (CERN) ; Goddard, Brennan (CERN) ; Velotti, Francesco (CERN) ; Bencini, Vittorio (CERN)
The CERN SPS Beam Dump System (SBDS) is responsible for disposing the beam in the SPS in case of any machine malfunctioning or end of cycled operation.This is achieved by the actuation of kicker magnets with predefined pulses, which aim to: i) deviate the beam towards the absorber block (TIDVG); ii) dilute the particle density. Evidently, a malfunction of this system may have negative consequences, such as the absorber block degrading if the beam is not sufficiently diluted, unwanted activation of the surroundings or even damage to the vacuum chamber in case of complete failure.By leveraging a combination of real images from a beam screen device and data from simulations, we train an online monitoring system to identify potential failures of the SBDS from real-time images. [...]
2023 - 4 p.
- Published in : JACoW IPAC 2023 (2023) THPL017
Fulltext: PDF;
In : 14th International Particle Accelerator Conference (IPAC 2023), Venice, Italy, 7 - 12 May 2023, pp.THPL017
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Feasibility Study of a New SPS Beam Dump System
/ Velotti, Francesco (CERN) ; Abelleira, Jose Luis (CERN) ; Barnes, Michael (CERN) ; Bracco, Chiara (CERN) ; Carlier, Etienne (CERN) ; Cerutti, Francesco (CERN) ; Cornelis, Karel (CERN) ; Folch, Ramon (CERN) ; Goddard, Brennan (CERN) ; Kain, Verena (CERN) et al.
The CERN Super Proton Synchrotron (SPS) presently uses an internal beam dump system with two separate blocks to cleanly dispose of low and high energy beams. In view of the increased beam power and brightness needed for the LHC Injector Upgrade project for High Luminosity LHC (HL-LHC), the performance of this internal beam dump system has been reviewed for future operation. [...]
CERN-ACC-2015-005.-
2015 - 4 p.
- Published in : (2015) , pp. THPF097
Published version from JACoW: PDF; External link: JACOW
In : 6th International Particle Accelerator Conference, Richmond, VA, USA, 3 - 8 May 2015, pp.THPF097
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