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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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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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Transverse emittance studies at extraction of the CERN PS Booster
/ Antoniou, Fanouria (CERN) ; Albright, Simon (CERN) ; Asvesta, Foteini (CERN) ; Bartosik, Hannes (CERN) ; Di Giovanni, Gian Piero (CERN) ; Forte, Vincenzo (CERN) ; Fraser, Matthew (CERN) ; Valdivieso, Ana (CERN) ; Huschauer, Alexander (CERN) ; Mikulec, Bettina (CERN) et al.
Transverse emittance discrepancy in the beam transfer between the Proton Synchrotron Booster (PSB) and the Proton Synchrotron (PS) is observed in operational conditions for the LHC beams at CERN. The ongoing LHC Injectors Upgrade (LIU) project requires a tight budget for beam degradation along the injector chain and therefore the reason for this emittance discrepancy needs to be understood. [...]
CERN-ACC-2019-085.-
2019 - 4 p.
- Published in : 10.18429/JACoW-IPAC2019-MOPTS087
Fulltext from publisher: PDF;
In : 10th International Particle Accelerator Conference, Melbourne, Australia, 19 - 24 May 2019, pp.MOPTS087
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4.
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The PS Booster Alignment Campaign and a New Tune Control Implementation After the LHC Injectors Upgrade at CERN
/ Antoniou, Fanouria (CERN) ; Asvesta, Foteini (CERN) ; Bartosik, Hannes (CERN) ; Comblin, Jean-Francois (CERN) ; Di Giovanni, Gian Piero (CERN) ; Hostettler, Michael (CERN) ; Huschauer, Alexander (CERN) ; Mikulec, Bettina (CERN) ; Nonglaton, Jean-Michel (CERN) ; Prebibaj, Tirsi (CERN ; Goethe U., Frankfurt (main))
The CERN PS Booster (PSB) has gone through major upgrades during the Long Shutdown 2 (LS2) and the recommissioning with beam started in December 2020. Two of the aspects leading to improved operation will be described in this paper: a new tune control implementation; and a
full re-alignment campaign. [...]
2022 - 6 p.
- Published in : JACoW HB 2021 (2022) 89-94
Fulltext: PDF;
In : 64th ICFA Advanced Beam Dynamics Workshop on High Intensity and High Brightness Hadron Beams (HB 2021), Batavia, Illinois, United States, 4 - 9 Oct 2021, pp.89-94
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5.
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Resonance Compensation for High Intensity and High Brightness Beams in the CERN PSB
/ Asvesta, Foteini (CERN) ; Albright, Simon (CERN) ; Antoniou, Fanouria (CERN) ; Bartosik, Hannes (CERN) ; Bracco, Chiara (CERN) ; Di Giovanni, Gian Piero (CERN) ; Maclean, Ewen (CERN) ; Mikulec, Bettina (CERN) ; Prebibaj, Tirsi (CERN ; Goethe U., Frankfurt (main)) ; Renner, Elisabeth (CERN ; TU Vienna)
Resonance studies have been conducted during the recommissioning of the CERN Proton Synchrotron Booster (PSB) following the implementation of the LHC Injectors Upgrade (LIU) project. In particular, resonance identification through so-called loss maps has been applied on all four rings of the PSB, revealing various resonances up to fourth order. [...]
2022 - 6 p.
- Published in : JACoW HB 2021 (2022) 40-45
Fulltext: PDF;
In : 64th ICFA Advanced Beam Dynamics Workshop on High Intensity and High Brightness Hadron Beams (HB 2021), Batavia, Illinois, United States, 4 - 9 Oct 2021, pp.40-45
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6.
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Optimised Transverse Painting Schemes for the New 160 MeV H$^-$ Injection System at CERN
/ Renner, Elisabeth (CERN ; TU Vienna) ; Albright, Simon (CERN) ; Antoniou, Fanouria (CERN) ; Asvesta, Foteini (CERN) ; Bartosik, Hannes (CERN) ; Bracco, Chiara (CERN) ; Di Giovanni, Gian Piero (CERN) ; Mikulec, Bettina (CERN) ; Prebibaj, Tirsi (CERN ; Goethe U., Frankfurt (main)) ; Velotti, Francesco (CERN)
A major aspect of the LHC Injectors Upgrade (LIU) project at CERN is the Proton Synchrotron Booster (PSB) connection to the newly built Linac4 and the related installation of a new 160 MeV H$^-$ charge exchange injection. This contribution presents the first operational experience with the new injection system and its flexibility of applying horizontal phase space painting to tailor different beams to the respective user-defined brightness targets. [...]
2022 - 6 p.
- Published in : JACoW HB 2021 (2022) 118-123
Fulltext: PDF;
In : 64th ICFA Advanced Beam Dynamics Workshop on High Intensity and High Brightness Hadron Beams (HB 2021), Batavia, Illinois, United States, 4 - 9 Oct 2021, pp.118-123
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7.
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Characterization of the Vertical Beam Tails in the CERN PS Booster
/ Prebibaj, Tirsi (CERN) ; Antoniou, Fanouria (CERN) ; Asvesta, Foteini (CERN) ; Bartosik, Hannes (CERN) ; Bracco, Chiara (CERN) ; Di Giovanni, Gian Piero (CERN) ; Renner, Elisabeth (CERN)
The CERN Proton Synchrotron Booster (PSB) went through major upgrades in the framework of the LHC Injectors Upgrade Project (LIU) aiming to double the brightness of the LHC beams. Operation restarted in early 2021, demonstrating the expected performance improvement. [...]
2022 - 4 p.
- Published in : JACoW IPAC 2022 (2022) 218-221
Fulltext: PDF;
In : 13th International Particle Accelerator Conference (IPAC 2022), Bangkok, Thailand, 12 - 17 Jun 2022, pp.218-221
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8.
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Studies on the Vertical Half-Integer Resonance in the CERN PS Booster
/ Prebibaj, Tirsi (CERN) ; Antoniou, Fanouria (CERN) ; Asvesta, Foteini (CERN) ; Bartosik, Hannes (CERN) ; Franchetti, Giuliano (Darmstadt, GSI)
Following the upgrades of the LHC Injectors Upgrade Project (LIU), the Proton Synchrotron Booster (PSB) at CERN successfully delivers beams with double brightness. An important contributing factor for this was the dynamic correction of the beta-beating induced by the injection chicane, which allowed stable operation closer to the half-integer resonance. [...]
2022 - 4 p.
- Published in : JACoW IPAC 2022 (2022) 222-225
Fulltext: PDF;
In : 13th International Particle Accelerator Conference (IPAC 2022), Bangkok, Thailand, 12 - 17 Jun 2022, pp.222-225
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9.
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Beam Commissioning of the New 160 MeV H⁻ Injection System of the CERN PS Booster
/ Renner, Elisabeth (CERN ; TU Vienna) ; Albright, Simon (CERN) ; Antoniou, Fanouria (CERN) ; Asvesta, Foteini (CERN) ; Bartosik, Hannes (CERN) ; Bracco, Chiara (CERN) ; Di Giovanni, Gian Piero (CERN) ; Jorat, Louise Olivia (CERN) ; Maclean, Ewen H (CERN) ; Meddahi, Malika (CERN) et al.
A key component to meeting the brightness targets of the LHC Injectors Upgrade (LIU) project at CERN is the new 160 MeV H⁻ charge exchange injection system into the Proton Synchrotron Booster. This system has been in beam commissioning since December 2020, optimizing the beam production schemes for tailoring different beams to the respective user-defined brightness targets. [...]
Geneva : JACoW, 2021 - 4 p.
- Published in : JACoW IPAC 2021 (2021) 3116-3119
Fulltext: PDF;
In : 12th International Particle Accelerator Conference (IPAC 2021), Online, 24 - 28 May 2021, pp.3116-3119
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10.
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Injection Chicane Beta-Beating Correction for Enhancing the Brightness of the CERN PSB Beams
/ Prebibaj, Tirsi (CERN ; Goethe U., Frankfurt (main)) ; Albright, Simon (CERN) ; Antoniou, Fanouria (CERN) ; Asvesta, Foteini (CERN) ; Bartosik, Hannes (CERN) ; Bracco, Chiara (CERN) ; Di Giovanni, Gian Piero (CERN) ; Maclean, Ewen (CERN) ; Mikulec, Bettina (CERN) ; Renner, Elisabeth (CERN ; TU Vienna)
In the context of the LHC Injectors Upgrade Project (LIU), the Proton Synchrotron Booster (PSB) developed an H$^{-}$ charge exchange injection system. The four short rectangular dipoles of the injection chicane induce focusing errors through edge focusing and eddy currents. [...]
2022 - 6 p.
- Published in : JACoW HB 2021 (2022) 112-117
Fulltext: PDF;
In : 64th ICFA Advanced Beam Dynamics Workshop on High Intensity and High Brightness Hadron Beams (HB 2021), Batavia, Illinois, United States, 4 - 9 Oct 2021, pp.112-117
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