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The CERN SPS Low level RF: The Cavity-Controller
/ Hagmann, Gregoire (CERN) ; Baudrenghien, Philippe (CERN) ; Egli, Julien (CERN) ; Spierer, Arthur (CERN) ; Sumiński, Maciej (CERN) ; Włostowski, Tomasz (CERN)
This paper is the second of a series of three on the Super Proton Synchrotron (SPS) Low Level RF (LLRF) upgrade. It covers the 200MHz Cavity-Controller part, that is responsible for the regulation of the accelerating field in a single SPS cavity. [...]
2022 - 4 p.
- Published in : JACoW IPAC 2022 (2022) 903-906
Fulltext: PDF;
In : 13th International Particle Accelerator Conference (IPAC 2022), Bangkok, Thailand, 12 - 17 Jun 2022, pp.903-906
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2.
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The CERN SPS Low Level RF: The Beam-Control
/ Spierer, Arthur (CERN) ; Baudrenghien, Philippe (CERN) ; Egli, Julien (CERN) ; Hagmann, Gregoire (CERN) ; Kuzmanović, Predrag (CERN) ; Stachon, Ireneusz (CERN) ; Sumiński, Maciej (CERN) ; Włostowski, Tomasz (CERN)
The Super Proton Synchrotron (SPS) Low Level RF (LLRF) has been completely upgraded during the CERN long shutdown (LS2, 2019-2020). The old NIM and VME based, mainly analog system has been replaced with modern digital electronics implemented on a MicroTCA platform. [...]
2022 - 4 p.
- Published in : JACoW IPAC 2022 (2022) 895-898
Fulltext: PDF;
In : 13th International Particle Accelerator Conference (IPAC 2022), Bangkok, Thailand, 12 - 17 Jun 2022, pp.895-898
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3.
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White Rabbit and MTCA.4 Use in the LLRF Upgrade for CERN’s SPS
/ Włostowski, Tomasz (CERN) ; Adrianek, Karol (CERN) ; Arruat, Michel (CERN) ; Baudrenghien, Philippe (CERN) ; Butterworth, Andrew (CERN) ; Daniluk, Grzegorz (CERN) ; Egli, Julien (CERN) ; Gill, John (CERN) ; Gingold, Tristan (CERN) ; González Cobas, Juan (CERN) et al.
The Super Proton Synchrotron (SPS) Low-level RF (LLRF) system at CERN was completely revamped in 2020. In the old system, the digital signal processing was clocked by a submultiple of the RF. [...]
2022 - 6 p.
- Published in : JACoW ICALEPCS2021 (2022) 847-852
Fulltext: PDF;
In : 18th International Conference on Accelerator and Large Experimental Physics Control Systems, Online, 18 - 22 Oct 2021, pp.847-852
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4.
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Reusable Real-Time Software Components for the SPS Low Level RF Control System
/ Sumiński, Maciej (CERN) ; Adrianek, Karol (CERN) ; Bielawski, Bartosz Przemyslaw (CERN) ; Butterworth, Andrew (CERN) ; Egli, Julien (CERN) ; Hagmann, Gregoire (CERN) ; Kuzmanović, Predrag (CERN) ; Novel González, Saul (CERN) ; Rey, Anthony (CERN) ; Spierer, Arthur (CERN)
In 2021 the Super Proton Synchrotron has been recommissioned after a complete renovation of its low level RF system (LLRF). The new system has largely moved to digital signal processing implemented as a set of functional blocks (IP cores) in Field Programmable Gate Arrays (FPGAs) with associated software to control them. [...]
2022 - 3 p.
- Published in : JACoW ICALEPCS2021 (2022) 939-941
Fulltext: PDF;
In : 18th International Conference on Accelerator and Large Experimental Physics Control Systems, Online, 18 - 22 Oct 2021, pp.939-941
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The CERN SPS Low Level RF upgrade project
/ Hagmann, Gregoire (CERN) ; Baudrenghien, Philippe (CERN) ; Betz, Jochen (CERN) ; Egli, Julien (CERN) ; Galindo Guarch, Francisco Javier (Barcelona, Polytechnic U.) ; Kotzian, Gerd (CERN) ; Rizzi, Mattia (CERN) ; Schmid, Lorenz (CERN) ; Spierer, Arthur (CERN) ; Włostowski, Tomasz (CERN)
The High Luminosity LHC project (HL-LHC) calls for the doubling of the beam intensity injected from the Super Proton Synchrotron (SPS). This is not possible with the present RF system consisting of four 200 MHz cavities. [...]
CERN-ACC-2019-124.-
2019 - 4 p.
- Published in : 10.18429/JACoW-IPAC2019-THPRB082
Fulltext from publisher: PDF;
In : 10th International Particle Accelerator Conference, Melbourne, Australia, 19 - 24 May 2019, pp.THPRB082
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7.
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The CERN SPS Low Level RF: embedded acquisition system for the Cavity-Controller and Beam-Control commissioning and diagnostics
/ Egli, J (CERN) ; Baudrenghien, P (CERN) ; Hagmann, G (CERN) ; Spierer, A (CERN) ; Suminski, M (CERN)
The CERN SPS Low Level RF (LLRF) has undergone a major upgrade, including the complete redesign of the 200MHz Cavity-Controller and the Beam-Control during the Long Shutdown (2018-21). This upgrade was motivated by the required doubling of the beam intensity in the SPS for the High Luminosity LHC project (HL-LHC). [...]
2023 - 4 p.
- Published in : JACoW IPAC 2023 (2023) THPA095
Fulltext: PDF;
In : 14th International Particle Accelerator Conference (IPAC 2023), Venice, Italy, 7 - 12 May 2023, pp.THPA095
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8.
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Beam Commissioning of the New Digital Low-Level RF System for CERN’s AD
/ Angoletta, Maria Elena (CERN) ; Albright, Simon (CERN) ; Barrientos, Diego (CERN) ; Findlay, Alan (CERN) ; Jaussi, Michael (CERN) ; Rey, Anthony (CERN) ; Sumiński, Maciej (CERN)
CERN’s Antiproton Decelerator (AD) has been re-furbished to provide reliable operation for the Extra Low ENergy Antiproton ring (ELENA). In particular, AD was equipped with a new digital Low-Level RF (LLRF) system that was successfully commissioned during the summer 2021. [...]
2022 - 4 p.
- Published in : JACoW IPAC 2022 (2022) 911-914
Fulltext: PDF;
In : 13th International Particle Accelerator Conference (IPAC 2022), Bangkok, Thailand, 12 - 17 Jun 2022, pp.911-914
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9.
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Commissioning of the Linac4 Low Level RF and Future Plans
/ Baudrenghien, Philippe (CERN) ; Galindo, Javier (CERN) ; Hagmann, Gregoire (CERN) ; Noirjean, Jose (CERN) ; Stellfeld, Donat (CERN) ; Valuch, Daniel (CERN)
Linac4 is a new 86-m long normal-conducting linear accelerator that will provide 160 MeV H^{−} to the CERN PS Booster (PSB), and replace the present 50 MeV proton Linac2. The Low Level RF (LLRF) system has to control the RFQ, two choppers, three bunching cavities, twenty two accelerating cavities and one debuncher in the transfer line to the PSB. [...]
CERN-ACC-2014-375.-
2014 - 3 p.
- Published in : (2014) , pp. THPP027
Fulltext: PDF; External link: JACoW server
In : 27th Linear Accelerator Conference, Geneva, Switzerland, 31 Aug - 5 Sep 2014, pp.THPP027
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10.
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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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