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1.
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Channeling performance of bent crystals developed at CERN
/ Rodin, Volodymyr (CERN) ; Esposito, Luigi Salvatore (CERN) ; Lechner, Anton (CERN) ; Demassieux, Quentin (CERN) ; Matheson, Eloise (CERN) ; Solis Paiva, Santiago (CERN) ; Seidenbinder, Regis (CERN) ; Aberle, Oliver (CERN) ; Perillo Marcone, Antonio (CERN) ; Calviani, Marco (CERN) et al.
Bent crystals are a mature technology used in several applications at CERN, such as the crystal-assisted collimation system for LHC ion operation and reduction of losses during the slow extraction from the SPS by shadowing the electrostatic septum. In the future, it is planned to measure electric and magnetic dipole moments of short-lived particles with a double-crystal experiment in the LHC. [...]
2024 - 4 p.
- Published in : JACoW IPAC 2024 (2024) THPS39
Fulltext: PDF;
In : 15th International Particle Accelerator Conference (IPAC 2024), Nashville, TN, United States, 19 - 24 May 2024, pp.THPS39
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2.
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HL-LHC series collimators: key technical requirements, crucial production challenges and risk mitigation plan
/ Piccinni, Carla (CERN) ; Perillo Marcone, Antonio (CERN) ; Senajova, Dominika (CERN) ; Baillard, Dylan (CERN) ; Grenier-Boley, Edouard (CERN) ; Nuiry, Francois-Xavier (CERN) ; Calviani, Marco (CERN) ; Seidenbinder, Regis (CERN) ; Redaelli, Stefano (CERN)
In view of High Luminosity (HL) - Large Hadron Collider (LHC) project, an upgraded collimation system has been developed to accommodate a rise of ten times of the integrated luminosity compared to the LHC. A new series of collimators will be produced and installed in the machine during the Long Shutdown 3 (LS3) to take place during 2026-2028. [...]
2024 - 4 p.
- Published in : JACoW IPAC 2024 (2024) TUPC75
Fulltext: PDF;
In : 15th International Particle Accelerator Conference (IPAC 2024), Nashville, TN, United States, 19 - 24 May 2024, pp.TUPC75
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3.
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Characterization of bent crystals for beam collimation with 6.8 TeV proton beams at the LHC
/ D'Andrea, Marco (CERN) ; Aberle, Oliver (CERN) ; Abramov, Andrey (CERN) ; Bandiera, Laura (INFN, Ferrara) ; Bruce, Roderik (CERN) ; Cai, Rongrong (CERN ; EPFL-ISIC, Lausanne) ; Calviani, Marco (CERN) ; Demassieux, Quentin (CERN) ; Dewhurst, Kay Alana (CERN) ; Di Castro, Mario (CERN) et al.
The concept of crystal collimation exploits the peculiar properties of crystalline materials to deflect high-energy beam particles at angles orders of magnitude larger than what can be achieved with scattering by conventional materials used as primary collimators. This innovative technique is planned to be used to improve the collimation efficiency with heavy-ion beams at the Large Hadron Collider (LHC) and its High-Luminosity upgrade (HL-LHC). [...]
2023 - 8 p.
- Published in : Nucl. Instrum. Methods Phys. Res., A 1060 (2024) 169062
Publication: PDF;
In : 9th International Conference on Charged & Neutral Particles Channeling Phenomena (Channeling 2023), Riccione, Italy, 4 - 9 June 2023, pp.169062
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4.
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LHC crystal collimation tests with 6.8 Z TeV Pb beams
/ Cai, R (CERN ; Ecole Polytechnique, Lausanne) ; Aberle, O (CERN) ; Bruce, R (CERN) ; Calviani, M (CERN) ; D'Andrea, M (CERN) ; Demassieux, Q (CERN) ; Dewhurst, K (CERN) ; Di Castro, M (CERN) ; Esposito, L S (CERN) ; Gilardoni, S (CERN) et al.
In the next heavy ion runs at the LHC, the cleaning of the beam halo will rely on crystal collimation. A test system installed in the collimation cleaning insertion is being upgraded for the operational challenges of the ion runs. [...]
2023 - 4 p.
- Published in : JACoW IPAC 2023 (2023) TUPM120
Fulltext: PDF;
In : 14th International Particle Accelerator Conference (IPAC 2023), Venice, Italy, 7 - 12 May 2023, pp.TUPM120
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5.
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Development of bent crystal manipulation systems for beam collimation and extraction at CERN
/ Demassieux, Q (CERN) ; Seidenbinder, R (CERN) ; Calviani, M (CERN) ; Aberle, O (CERN) ; Salvant, B (CERN) ; Mirachi, D (CERN) ; Antuono, C (CERN) ; Matheson, E (CERN) ; Fraser, M (CERN) ; Hermes, P (CERN) et al.
Manipulating high energy beams with bent crystals has applications ranging from beam collimation to slow or direct beam extraction. These systems are now integrated parts of accelerators and studied for future experimental set-ups.With growing achievements and expectations of crystal beam manipulation, requirements for the devices that operate the crystals become more stringent. [...]
2023 - 4 p.
- Published in : JACoW IPAC 2023 (2023) MOPA085
Fulltext: PDF;
In : 14th International Particle Accelerator Conference (IPAC 2023), Venice, Italy, 7 - 12 May 2023, pp.MOPA085
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6.
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Demonstration of non-local crystal shadowing at the CERN SPS
/ Velotti, F M (CERN) ; Fraser, M (CERN) ; Sota, P A Arrutia (CERN) ; Calviani, M (CERN) ; Di Castro, M (CERN) ; Cettour Cave, S (CERN) ; Donze, M (CERN) ; Esposito, L S (CERN) ; Goddard, B (CERN) ; Kain, V (CERN) et al.
The main SPS users are the experiments installed in North experimental Area (NA) which are served with a continuous 4.8 s long spill of protons and heavy ions. A third-integer resonant slow extraction is used to provide a uniform, long spill. [...]
2023 - 4 p.
- Published in : JACoW IPAC 2023 (2023) MOPA098
Fulltext: PDF;
In : 14th International Particle Accelerator Conference (IPAC 2023), Venice, Italy, 7 - 12 May 2023, pp.MOPA098
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7.
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Crystal collimation performance at the LHC with a 6.8 TeV proton beam
/ D'Andrea, M (CERN) ; Aberle, O (CERN) ; Abramov, A (CERN) ; Bruce, R (CERN) ; Cai, R (CERN ; Ecole Polytechnique, Lausanne) ; Calviani, M (CERN) ; Demassieux, Q (CERN) ; Dewhurst, K A (CERN) ; Di Castro, M (CERN) ; Esposito, L S (CERN) et al.
Crystal collimation is studied to improve the collimation efficiency with ion beams at the High-Luminosity Large Hadron Collider (HL-LHC). Bent crystals are used instead of conventional primary collimators to deflect high-energy halo particles at angles orders of magnitude larger than what can be achieved with scattering by conventional materials. [...]
2023 - 4 p.
- Published in : JACoW IPAC 2023 (2023) MOPL023
Fulltext: PDF;
In : 14th International Particle Accelerator Conference (IPAC 2023), Venice, Italy, 7 - 12 May 2023, pp.MOPL023
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8.
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Irradiation of Low-Z Carbon-Based Materials with 440 GeV/c Proton Beam for High Energy & Intensity Beam Absorbers: The CERN HiRadMat-56-HED Experiment
/ Andreu Muñoz, Pablo (CERN) ; Calviani, Marco (CERN) ; Charitonidis, Nikolaos (CERN) ; Cherif, Ahmed (CERN) ; Farina, Edoardo (CERN) ; Krainer, Alexander (CERN) ; Lechner, Anton (CERN) ; Maestre, Jorge (CERN) ; Nuiry, Francois-Xavier (CERN) ; Seidenbinder, Regis (CERN) et al.
The beam stored energy and the peak intensity of CERN Large Hadron Collider (LHC) will grow in the next few years. The former will increase from the 320 MJ values of Run2 (2015-2018) to almost 540 MJ during Run3 (2022 onwards) and 680 MJ during the HL-LHC era putting stringent requirements on beam intercepting devices, such as absorbers and dumps. [...]
2022 - 4 p.
- Published in : JACoW IPAC 2022 (2022) 2883-2886
Fulltext: PDF;
In : 13th International Particle Accelerator Conference (IPAC 2022), Bangkok, Thailand, 12 - 17 Jun 2022, pp.2883-2886
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9.
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New Generation CERN LHC Injection Dump - Assembly and Installation (TDIS)
/ Carbajo Perez, David (CERN) ; Berthomé, Emmanuel (CERN) ; Bertone, Caterina (CERN) ; Biancacci, Nicolo (CERN) ; Bracco, Chiara (CERN) ; Bregliozzi, Giuseppe (CERN) ; Bulat, Bartosz (CERN) ; Cadiou, Cyril (CERN) ; Calviani, Marco (CERN) ; Cattenoz, Gregory (CERN) et al.
During CERN’s LS2, several upgrades were performed to beam intercepting devices in the framework of the HL-LHC Project. Upgraded equipment includes two internal beam dumps (TDIS) intended for machine protection located at the injection points from the SPS to the LHC. [...]
Geneva : JACoW, 2021 - 4 p.
- Published in : JACoW IPAC 2021 (2021) 3548-3551
Fulltext: PDF;
In : 12th International Particle Accelerator Conference (IPAC 2021), Online, 24 - 28 May 2021, pp.3548-3551
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10.
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High intensity proton beam impact at 440 GeV/c on Mo and Cu coated CfC/graphite and SiC/SiC absorbers for beam intercepting devices
/ Maestre, Jorge (CERN ; Granada U.) ; Bahamonde, Cristina (CERN) ; Garcia, Inigo Lamas (CERN) ; Kershaw, Keith (CERN) ; Biancacci, Nicolo (CERN) ; Busom, Josep (CERN) ; Frankl, Matthias (CERN ; PSI, Villigen) ; Lechner, Anton (CERN) ; Kurtulus, Adnan (CERN) ; Makimura, Shunsuke (J-PARC ; KEK, Tsukuba) et al.
Beam Intercepting Devices (BIDs) are essential protection elements for the operation of the Large Hadron Collider (LHC) complex. The LHC internal beam dump (LHC Target Dump Injection or LHC TDI) is the main protection BID of the LHC injection system; its main function is to protect LHC equipment in the event of a malfunction of the injection kicker magnets during beam transfer from the SPS to the LHC. [...]
arXiv:2112.04792.-
2022-01-14 - 34 p.
- Published in : JINST 17 (2022) P01019
Fulltext: document - PDF; 2112.04792 - PDF;
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