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CERN Document Server 2,044 records found  1 - 10nextend  jump to record: Search took 0.43 seconds. 
1.
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Overview of material choices for HL-LHC collimators / Accettura, C (CERN) ; Biancacci, N (CERN) ; Bruce, R (CERN) ; Carra, F (CERN) ; Mounet, N (CERN) ; Kurtulus, A (CERN ; Zurich, ETH) ; Nuiry, F -X (CERN) ; Perillo Marcone, A (CERN) ; Redaelli, S (CERN)
In view of the High-Luminosity (HL-LHC) upgrade of the LHC collimation system, different materials were investigated to determine how the jaws of the new collimators could be manufactured to meet the demanding requirements of HL-LHC, such as thermomechanical robustness and stability, RF impedance, UHV, etc. During the Long-Shutdown 2 (LS2), five primary and 10 secondary low-impedance collimators were already produced using novel material. [...]
2023 - 4 p. - Published in : JACoW IPAC 2023 (2023) WEPA148 Fulltext: PDF;
In : 14th International Particle Accelerator Conference (IPAC 2023), Venice, Italy, 7 - 12 May 2023, pp.WEPA148
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OPEN-PHO-ACCEL-2020-006
© 2020-2023 CERN 		Installation of the last two secondary collimators (TCSPM) at Point 7
The last two Low-Impedance Secondary Collimators ( [...]
11-12-2020
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Beam-Impact Validation of HL-LHC Collimator Materials: the "MultiMat-2" Experiment / Carra, F (CERN) ; Accettura, C (CERN) ; Bertarelli, A (CERN) ; Berthomé, E (CERN) ; Bruce, R (CERN) ; Charitonidis, N (CERN) ; Dalemir, M (CERN) ; Farina, E (CERN) ; Guardia-Valenzuela, J (CERN) ; Guinchard, M (CERN) et al.
In 2017, a proton-impact test HL-LHC collimator materials was carried out in the HiRadMat facility at CERN. The experiment, called “MultiMat”, enabled the testing of bulk and coated materials developed at CERN for different beam collimation functionalities. [...]
2023 - 4 p. - Published in : JACoW IPAC 2023 (2023) WEPM109 Fulltext: PDF;
In : 14th International Particle Accelerator Conference (IPAC 2023), Venice, Italy, 7 - 12 May 2023, pp.WEPM109
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Low-Impedance Collimators for HL-LHC / Antipov, Sergey (CERN) ; Amorim, David (U. Grenoble Alpes) ; Bertarelli, A (CERN) ; Biancacci, Nicolo (CERN) ; Bruce, Roderik (CERN) ; Mereghetti, Alessio (CERN) ; Mirarchi, Daniele (CERN) ; Métral, Elias (CERN) ; Redaelli, Stefano (CERN) ; Salvant, Benoit (CERN)
The High-Luminosity upgrade of the Large Hadron Collider (HL-LHC) will double its beam intensity for the needs of High Energy Physics frontier. This increase requires a reduction of the machine's impedance to ensure the coherent stability of the beams until they are put in collision. [...]
CERN-ACC-2018-147.- 2018 - 4 p. - Published in : 10.18429/JACoW-IPAC2018-WEYGBE4 Fulltext: PDF;
In : 9th International Particle Accelerator Conference, Vancouver, Canada, 29 Apr - 4 May 2018, pp.WEYGBE4
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Detailed Electromagnetic Characterisation of HL-LHC Low Impedance Collimators / Kurtulus, Adnan (CERN ; ETH, Zurich (main)) ; Accentura, Carlotta (CERN) ; Biancacci, Nicolo (CERN) ; Carra, Federico (CERN) ; Caspers, Fritz (CERN) ; Chitnis, Ninad (CERN) ; Giordano, Francesco (CERN) ; Illan Fiastre, Ricardo (CERN) ; Joly, Sébastien (CERN) ; Lamas Garcia, Inigo (CERN) et al.
The High Luminosity Large Hadron Collider (HL-LHC) project will upgrade the LHC machine to allow operation with increased luminosity for the experiments. In order to achieve this goal, different operational parameters of the machine need to be pushed beyond the present design values, including the stored beam energy. [...]
Geneva : JACoW, 2021 - 4 p. - Published in : JACoW IPAC 2021 (2021) 4258-4261 Fulltext: PDF;
In : 12th International Particle Accelerator Conference (IPAC 2021), Online, 24 - 28 May 2021, pp.4258-4261
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Staged implementation of low-impedance collimation in IR7: plans for LS2 / Redaelli, Stefano (CERN) ; Antipov, Sergey (CERN) ; Biancacci, Nicolo (CERN) ; Bertarelli, Alessandro (CERN) ; Bruce, Roderik (CERN) ; Carra, Federico (CERN) ; Gobbi, Giorgia (CERN) ; Lechner, Anton (CERN) ; Mereghetti, Alessio (CERN) ; Metral, Elias (CERN)
The HL-LHC upgrade baseline foresees to replace all secondary collimators of IR7 until LS3 in order to ensure a sufficient margin for beam stability with the high-brightness upgraded beams. [...]
CERN-ACC-NOTE-2019-0001. - 2019. - 30 p.
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Resistivity Characterization of Molybdenum-Coated Graphite-Based Substrates for High-Luminosity LHC Collimators / Accettura, Carlotta (Politecnico di Milano (IT)) ; Amorim, David (Universite Grenoble-Alpes (FR)) ; Antipov, Sergey ; Baris, Adrienn (CERN) ; Bertarelli, Alessandro (CERN) ; Biancacci, Nicolo (CERN) ; Calatroni, Sergio (CERN) ; Carra, Federico (CERN) ; Caspers, Fritz (European Scientific Institute (FR)) ; Garcia-Tabares Valdivieso, Elisa (CERN) et al.
The High-Luminosity Large Hadron Collider (HL-LHC) project aims at extending the operability of the LHC by another decade and increasing by more than a factor of ten the integrated luminosity that the LHC will have collected by the end of Run 3. This will require doubling the beam intensity and reducing the transverse beam size compared to those of the LHC design. [...]
CERN-ACC-NOTE-2020-0025.- Geneva : CERN, 2020 - Published in : Coatings 10 (2020) 361 Fulltext: PDF;
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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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Transverse Beam Stability with Low-Impedance Collimators in the High Luminosity Large Hadron Collider: Status and Challenges / Antipov, S.A. (CERN) ; Amorim, D. (CERN) ; Biancacci, N. (CERN) ; Carideo, E. (CERN) ; Mereghetti, A. (CERN) ; Métral, E. (CERN) ; Redaelli, S. (CERN) ; Salvant, B. (CERN) ; Valuch, D. (CERN)
The High-Luminosity upgrade of the Large Hadron Collider (HL-LHC) will double its beam intensity for the needs of High Energy Physics frontier. In order to ensure coherent stability until the beams are put in collision, the transverse impedance has to be reduced [...]
arXiv:1910.09974.- 2020-03-30 - 13 p. - Published in : Phys. Rev. Accel. Beams 23 (2020) 034403 Fulltext: PDF; Fulltext from Publisher: PDF;
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The HL-LHC Impedance Model and Aspects of Beam Stability / Biancacci, Nicolo (CERN) ; Li, Kevin (CERN) ; Métral, Elias (CERN) ; Salvant, Benoit (CERN)
The LHC upgrade to the HLLHC foresees new challenging operational scenarios from the beam dynamics point of view. In order to ensure good machine operation and performance, the machine impedance, among other possible sources of instabilities like beam-beam and electron cloud, needs to be carefully quantified profiting also from the current LHC operation. [...]
CERN-ACC-2016-309.- 2016 - 4 p. - Published in : 10.18429/JACoW-IPAC2016-MOPOR009 Published version from JACoW: PDF;
In : 7th International Particle Accelerator Conference, Busan, Korea, 8 - 13 May 2016, pp.MOPOR009
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