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1.
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Investigations of losses on the CERN SPS flat bottom with HL-LHC type beams
/ Lasheen, Alexandre (CERN) ; Bartosik, Hannes (CERN) ; Damerau, Heiko (CERN) ; Demetriadou, Despina (CERN) ; Vinten, Evin (CERN) ; Hermes, Pascal (CERN) ; Kain, Verena (CERN) ; Karpov, Ivan (CERN) ; Papotti, Giulia (CERN) ; Vadai, Mihaly (CERN) et al.
The High-Luminosity LHC (HL-LHC) project at CERN aims at doubling the beam intensity and the brightness. To achieve this unprecedented performance, the LHC injectors were upgraded during the Long Shutdown 2 (2019-2021) to overcome limitations such as space charge and beam instabilities. [...]
2023
- Published in : JACoW IPAC 2023 (2023) TUPA153
Fulltext: PDF;
In : 14th International Particle Accelerator Conference (IPAC 2023), Venice, Italy, 7 - 12 May 2023, pp.TUPA153
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2.
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Optimizing Pb beam losses at the LHCb for maximum luminosity
/ Frasca, A (CERN) ; Bruce, R (CERN) ; Cerutti, F (CERN) ; Ciccotelli, A (CERN ; Manchester U.) ; Patecki, M (Warsaw U. of Tech.)
In addition to the physics program with proton beams, the Large Hadron Collider (LHC) also provides collisions of fully-stripped Pb beams for about one month per year. When colliding Pb-Pb nuclei, electromagnetic interactions are the dominating processes because of the intense Coulomb field produced by the ions. [...]
2023 - 4 p.
- Published in : JACoW IPAC 2023 (2023) MOPL030
Fulltext: PDF;
In : 14th International Particle Accelerator Conference (IPAC 2023), Venice, Italy, 7 - 12 May 2023, pp.MOPL030
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3.
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Simulations and measurements of collisional losses with Pb beams at the LHC
/ Frasca, A (CERN) ; Abramov, A (CERN) ; Bruce, R (CERN) ; Cai, R (CERN) ; Cerutti, F (CERN) ; Esposito, L (CERN) ; Lindström, B (CERN) ; Van der Veken, F (CERN) ; Ziliotto, F (CERN) ; Patecki, M (CERN)
During about one month in every operational year, the Large Hadron Collider (LHC) works as a heavy-ion collider. Four one-month Pb-Pb runs have been executed so far, as well as two p-Pb runs. [...]
2023 - 4 p.
- Published in : JACoW IPAC 2023 (2023) MOPL029
Fulltext: PDF;
In : 14th International Particle Accelerator Conference (IPAC 2023), Venice, Italy, 7 - 12 May 2023, pp.MOPL029
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4.
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Performance of a double-crystal setup for LHC fixed-target experiments
/ Dewhurst, K A (CERN) ; D'Andrea, M (CERN) ; Hermes, P D (CERN) ; Mirarchi, D (CERN) ; Redaelli, S (CERN) ; Patecki, M (Warsaw U. of Tech.)
The Physics Beyond Colliders (PBC) studies at CERN address the possibility to utilise protons in the Large Hadron Collider (LHC) for a fixed-target program beyond the colliding-beam physics. As part of PBC, a double-crystal test stand is considered for installation in the LHC off-momentum collimation Insertion Region (IR) 3. [...]
CERN-PBC-CONF-2024-003.-
2023 - 4 p.
- Published in : JACoW IPAC 2023 (2023) MOPL048
Fulltext: PDF;
In : 14th International Particle Accelerator Conference (IPAC 2023), Venice, Italy, 7 - 12 May 2023, pp.MOPL048
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5.
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Status of Layout Studies for Fixed-Target Experiments in Alice Based on Crystal-Assisted Halo Splitting
/ Patecki, Marcin (Warsaw U. of Tech.) ; Fomin, Alex (CERN) ; Kikoła, Daniel (Warsaw U. of Tech.) ; Mirarchi, Daniele (CERN) ; Redaelli, Stefano (CERN)
The Large Hadron Collider (LHC) at the European Organization for Nuclear Research (CERN) is the world largest and most powerful particle accelerator colliding beams of protons and lead ions at energies up to 7 TeV and 2.76 TeV, respectively. ALICE is one of the detector experiments optimised for heavy-ion collisions. [...]
2022 - 5 p.
- Published in : JACoW HB 2021 (2022) 146-150
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.146-150
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6.
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HL-LHC layout for fixed-target experiments in ALICE based on crystal-assisted beam halo splitting
/ Patecki, Marcin (Warsaw U. of Tech.) ; Mirarchi, Daniele (CERN) ; Redaelli, Stefano (CERN) ; Fomin, Alex (CERN) ; Hadjidakis, Cynthia (IJCLab, Orsay) ; Galluccio, Francesca (INFN, Naples) ; Scandale, Walter (Imperial Coll., London ; INFN, Rome)
The Large Hadron Collider (LHC) at the European Organization for Nuclear Research (CERN) is the world's largest and most powerful particle accelerator colliding beams of protons and lead ions at energies up to 7 ZTeV, Z is the atomic number. ALICE is one of the detector experiments optimised for heavy-ion collisions. [...]
arXiv:2210.13299.-
2023-11-18 - 6 p.
- Published in : Eur. Phys. J. C 83 (2023) 1053
Fulltext: 2210.13299 - PDF; document - PDF;
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7.
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A Local Modification of HL-LHC Optics for Improved Performance of the Alice Fixed-Target Layout
/ Patecki, Marcin (Warsaw U. of Tech. (main)) ; Fomin, Alex (CERN) ; Hermes, Pascal (CERN) ; Kikoła, Daniel (Warsaw U. of Tech. (main)) ; Mirarchi, Daniele (CERN) ; Redaelli, Stefano (CERN)
The Large Hadron Collider (LHC) at the European Organization for Nuclear Research (CERN) is the world’s largest and most powerful particle accelerator colliding beams of protons and lead ions at energies up to 7 TeV and 2.76 TeV, respectively. ALICE is one of the detector experiments optimised for heavy-ion collisions. [...]
2022 - 4 p.
- Published in : JACoW IPAC 2022 (2022) 108-111
Fulltext: PDF;
In : 13th International Particle Accelerator Conference (IPAC 2022), Bangkok, Thailand, 12 - 17 Jun 2022, pp.108-111
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8.
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Beam Losses, Lifetime and Collimator Hierarchy
/ Bruce, R (CERN) ; D'Andrea, N (CERN) ; Martinez, A Fuster (CERN) ; Gorzawski, A (CERN) ; Mereghetti, A (CERN) ; Mirarchi, D (CERN) ; Patecki, M (CERN) ; Rossi, R (CERN) ; Salvachua Ferrando, B M (CERN) ; Camillocci, M Solfaroli (CERN) et al.
The aim of the LHC collimation system is to ensure a safe machine operation; it
provides the LHC with passive protection and minimises the risk of magnet
quenches induced by beam losses. In 2017, the LHC collimation system confirmed
its excellent performance, with no magnet quenches due to losses from
circulating beams while accommodating changes in machine configurations [...]
2019 - 8 p.
- Published in : (2019) , pp. 85-92
Fulltext: PDF;
In : 8th Evian Workshop on LHC beam operation, Evian Les Bains, France, 12 - 14 Dec 2017, pp.85-92
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9.
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10.
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Run 2 Collimation Overview
/ Fuster Martinez, N. (CERN) ; Abramov, A (CERN ; Royal Holloway, U. of London) ; Azzopardi, G (CERN ; Malta U.) ; Belli, E (CERN) ; Boscolo-Meneguolo, C (CERN) ; Bruce, R (CERN) ; D' Andrea, M. (CERN ; Padua U.) ; Di Castro, M. (CERN) ; Fiascari, M (CERN) ; Fomin, A (CERN ; Kharkov, KIPT) et al.
The LHC collimation system is designed to provide protection against regular and abnormal losses in order to reduce the risk of quenches of the superconducting magnets as well as the background in the experiments. All Run 2 proton and ion runs were successfully completed with no magnet quenches from slow losses of the circulating beam. [...]
2019 - 16 p.
- Published in : , pp. 149-164
Fulltext: PDF;
In : 9th LHC Operations Evian Workshop, Evian Les Bains, France, 30 Jan - 1 Feb 2019, pp.149-164
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