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1.
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Upgrade of the CERN SPS Extraction Protection Elements TPS
/ Borburgh, Jan (CERN) ; Balhan, Bruno (CERN) ; Barnes, Michael (CERN) ; Baud, Cedric (CERN) ; Fraser, Matthew (CERN) ; Kain, Verena (CERN) ; Maciariello, Fausto (CERN) ; Steele, Genevieve (CERN) ; Velotti, Francesco (CERN)
In 2006 the protection devices upstream of the septa in both extraction channels of the CERN SPS to the LHC were installed. Since then, new beam parameters have been proposed for the SPS beam towards the LHC in the framework of the LIU project. [...]
2015 - 4 p.
- Published in : 10.18429/JACoW-IPAC2015-WEPMN068
Fulltext: PDF; External link: Full-text at JACoW Server
In : 6th International Particle Accelerator Conference, Richmond, VA, USA, 3 - 8 May 2015, pp.WEPMN068
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2.
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Beam coupling impedance of the main extraction kickers in the CERN PS
/ Neroni, M (CERN ; U. Rome La Sapienza (main)) ; Barnes, M J (CERN) ; Lasheen, A (CERN) ; Mostacci, A (U. Rome La Sapienza (main)) ; Popovic, B (Argonne) ; Vollinger, C (CERN)
In view of the High Luminosity (HL) upgrade of the LHC, thebeam intensity must be doubled in the injector chain. To performreliable beam dynamics simulations, the beam coupling impedance inthe injectors, such as the Proton Synchrotron (PS), must be followedclosely by including all contributing elements into the impedancemodel. [...]
2024 - 12 p.
- Published in : JINST 19 (2024) T08001
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.T08001
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3.
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Topologies for the kicker systems of the FCC-ee collider and injectors
/ Martinek, Petr (CERN) ; Favia, Giorgia (CERN) ; Barnes, Michael (CERN) ; Diaz Zumel, Miguel (CERN) ; Yue, Sen (CERN) ; Kramer, Thomas (CERN) ; Dutheil, Yann (CERN)
A central part of CERN’s Future Circular collider study (FCC) is a ~91 km circumference lepton collider and its injector complex. This contribution outlines the various kicker systems needed to transport the lepton beams from the electron source up to the collider dump system. [...]
2024 - 4 p.
- Published in : JACoW IPAC 2024 (2024) TUPC40
Fulltext: PDF;
In : 15th International Particle Accelerator Conference (IPAC 2024), Nashville, TN, United States, 19 - 24 May 2024, pp.TUPC40
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4.
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SPS injection kicker system: 2023 operational experience and upgrade proposals for high-luminosity LHC
/ Favia, Giorgia (CERN) ; Zannini, Carlo (CERN) ; Standen, Dylan (CERN) ; Velotti, Francesco (CERN) ; Ducimetière, Laurent (CERN) ; Feliciano, Luis (CERN) ; Barnes, Michael (CERN) ; Diaz Zumel, Miguel (CERN) ; Trubacova, Pavlina (CERN) ; Kramer, Thomas (CERN) et al.
The SPS injection kicker system comprises twelve MKP-S (small aperture) modules and four MKP-L (large aperture) modules. An upgraded MKP-L magnet was installed in the SPS, during December 2022, in view of the higher beam intensity needed in the future for High-Luminosity-LHC. [...]
2024 - 4 p.
- Published in : JACoW IPAC 2024 (2024) TUPC38
Fulltext: PDF;
In : 15th International Particle Accelerator Conference (IPAC 2024), Nashville, TN, United States, 19 - 24 May 2024, pp.TUPC38
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5.
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Qualification of components for installation in LHC kicker magnets
/ Diaz Zumel, Miguel (CERN) ; Bracco, Chiara (CERN) ; Standen, Dylan (CERN) ; Favia, Giorgia (CERN) ; Ducimetière, Laurent (CERN) ; Barnes, Michael (CERN) ; Trubacova, Pavlina (CERN) ; Maurin, Theo (CERN) ; Stadlbauer, Tobias (CERN)
LHC injection kickers (MKI) are pulsed at high voltage to achieve magnetic field pulses with fast rise time. The MKIs contain a beam screen to help shield their ferrite yoke from beam induced heating. [...]
2024 - 4 p.
- Published in : JACoW IPAC 2024 (2024) THPS61
Fulltext: PDF;
In : 15th International Particle Accelerator Conference (IPAC 2024), Nashville, TN, United States, 19 - 24 May 2024, pp.THPS61
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6.
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Initial operational experience of an LHC injection kicker magnet upgraded for HL-LHC
/ Barnes, Michael (CERN) ; Diaz Zumel, Miguel (CERN) ; Bracco, Chiara (CERN) ; Standen, Dylan (CERN) ; Favia, Giorgia (CERN) ; Ducimetière, Laurent (CERN) ; Trubacova, Pavlina (CERN) ; Kramer, Thomas (CERN) ; Stadlbauer, Tobias (CERN) ; Gomes Namora, Vasco (CERN)
The intensity of the HL-LHC beam will be twice that of LHC. Hence, an upgrade of the LHC injection kickers (MKIs) is necessary for HL-LHC to avoid excessive beam induced heating of the MKIs. [...]
2024 - 4 p.
- Published in : JACoW IPAC 2024 (2024) TUPC36
Fulltext: PDF;
In : 15th International Particle Accelerator Conference (IPAC 2024), Nashville, TN, United States, 19 - 24 May 2024, pp.TUPC36
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7.
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Production and validation of the RF cooling damper for the LHC injection kickers
/ Trubacova, Pavlina (CERN) ; Gerardin, Alexandre (CERN) ; Favia, Giorgia (CERN) ; Geisser, Jean-Marie (CERN) ; Scibor, Karol (CERN) ; Ducimetière, Laurent (CERN) ; Barnes, Michael (CERN) ; Diaz Zumel, Miguel (CERN) ; Kramer, Thomas (CERN)
Fast single-turn injection kicker systems deflect incoming beam onto the orbit of the LHC. The higher intensities of High Luminosity (HL) LHC beams are predicted to cause the ferrite yokes of the LHC injection kicker magnets (MKI), in their current configuration, to heat up to their Curie temperature. [...]
2024 - 4 p.
- Published in : JACoW IPAC 2024 (2024) TUPC39
Fulltext: PDF;
In : 15th International Particle Accelerator Conference (IPAC 2024), Nashville, TN, United States, 19 - 24 May 2024, pp.TUPC39
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8.
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Chapter 19: Injection and Beam Dump Systems
/ Bracco, C (CERN) ; Barnes, M J (CERN) ; Bartmann, W (CERN) ; Calviani, M (CERN) ; Perez, D Carbajo (CERN) ; Carlier, E (CERN) ; Ducimetiere, L (CERN) ; Frankl, M I (CERN) ; Goddard, B (CERN) ; Jowett, J (CERN) et al.
Some of the elements of the LHC injection and extraction systems will be upgraded or replaced to adapt to the increased beam brightness and intensity of the HL-LHC beams [1; 2]. The injection main protection absorber will be replaced with new hardware which will be able to absorb and withstand 288 HL-LHC bunches in case of an injection kicker failure. [...]
2024 - 17 p.
- Published in : Adv. Ser. Direct. High Energy Phys. 31 (2024) 427-443
Fulltext: PDF;
In : The High Luminosity Large Hadron Collider, pp.427-443
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9.
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Beam Coupling Impedance of the Main Extraction Kickers in the CERN PS
/ Neroni, Michela (CERN ; U. Rome La Sapienza (main)) ; Barnes, Michael (CERN) ; Lasheen, Alexandre (CERN) ; Mostacci, Andrea (U. Rome La Sapienza (main)) ; Popovic, Branko (Argonne) ; Vollinger, Christine (CERN)
In view of the High Luminosity (HL) upgrade of the LHC, the beam intensity must be doubled in the injector chain. To perform reliable beam dynamics simulations, the beam coupling impedance in the injectors, such as the Proton Synchrotron (PS), must be followed closely by including all contributing elements into the impedance model. [...]
2024 - 5 p.
- Published in : JACoW HB 2023 (2024) 178-182
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.178-182
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10.
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MKP-L Impedance Mitigation and Expectations for MKP-S in the CERN-SPS
/ Zannini, Carlo (CERN) ; Barnes, Michael (CERN) ; Beck, Mario (CERN) ; Díaz Zumel, Miguel (CERN) ; Ducimetière, Laurent (CERN) ; Rumolo, Giovanni (CERN) ; Standen, Dylan (CERN) ; Trubacova, Pavlina (CERN)
Beam coupling impedance mitigation is key in preventing intensity limitations due to beam stability issues, heating and sparking. In this framework, a very good example is the optimization of the SPS kickers beam-coupling impedance for beam-induced heating mitigation. [...]
2024 - 4 p.
- Published in : JACoW HB 2023 (2024) 466-469
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.466-469
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