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High Intensity Beam Test of Low Z Materials for the Upgrade of SPS-to-LHC Transfer Line Collimators and LHC Injection Absorbers
/ Maciariello, Fausto (CERN) ; Aberle, Oliver (CERN) ; Butcher, Mark (CERN) ; Calviani, Marco (CERN) ; Folch, Ramon (CERN) ; Kain, Verena (CERN) ; Karagiannis, Konstantinos (CERN) ; Lamas Garcia, Inigo (CERN) ; Lechner, Anton (CERN) ; Nuiry, Francois-Xavier (CERN) et al.
In the framework of the LHC Injector Upgrade (LIU) and High-Luminosity LHC (HL-LHC) project, the collimators in the SPS-to LHC transfer lines will undergo important modifications. The changes to these collimators will allow them to cope with beam brightness and intensity levels much increased with respect to their original design parameters: nominal and ultimate LHC. [...]
CERN-ACC-2016-281.-
2016 - 4 p.
- Published in : 10.18429/JACoW-IPAC2016-TUPMB052
Published version from JACoW: PDF;
In : 7th International Particle Accelerator Conference, Busan, Korea, 8 - 13 May 2016, pp.TUPMB052
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2.
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Design and Prototyping of New CERN Collimators in the Framework of the LHC Injector Upgrade (LIU) Project and the High-Luminosity (HL-LHC) Project
/ Nuiry, Francois-Xavier (CERN) ; Aberle, Oliver (CERN) ; Bergeret, Maxime (CERN) ; Bertarelli, Alessandro (CERN) ; Biancacci, Nicolo (CERN) ; Bruce, Roderik (CERN) ; Calviani, Marco (CERN) ; Carra, Federico (CERN) ; Dallocchio, Alessandro (CERN) ; Gentini, Luca (CERN) et al.
In the framework of the Large Hadron Collider (LHC) Injectors Upgrade (LIU) and the High-Luminosity LHC (HL-LHC) Projects at CERN (European Organization for Nuclear Research, in Geneva, Switzerland), collimators in the Super Proton Synchrotron (SPS) to LHC transfer lines as well as ring collimators in the LHC will undergo important upgrades in the forthcoming years, mainly focused during the Long Shutdown 2 foreseen during 2019-2020. This contribution will detail the current design of the TCDIL collimators with a particular emphasis on the engineering developments performed on the collimator jaws, aiming at getting a stringent flatness while consid-ering also the integration of thermal shock resistant materials. [...]
CERN-ACC-2017-302.-
2017 - 4 p.
- Published in : 10.18429/JACoW-IPAC2017-MOPAB006
Fulltext: PDF;
In : 8th International Particle Accelerator Conference, Copenhagen, Denmark, 14 - 19 May 2017, pp.MOPAB006
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3.
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Status of Crystal Collimation Studies at the LHC
/ Rossi, Roberto (CERN) ; Aberle, Oliver (CERN) ; Andreassen, Odd (CERN) ; Butcher, Mark (CERN) ; Dionisio Barreto, Cristovao Andre (CERN) ; Galluccio, Francesca (INFN, Naples) ; Lamas Garcia, Inigo (CERN) ; Masi, Alessandro (CERN) ; Mirarchi, Daniele (CERN) ; Montesano, Simone (CERN) et al.
Crystal collimation is a technique that relies on highly pure bent crystals to coherently deflect beam particles - through the channeling mechanisms - onto dedicated absorbers. Standard multi-stage collimation systems for hadron beams use amorphous materials as primary collimators and might be limited by nuclear interactions and ion fragmentation that are strongly suppressed in crystals. [...]
CERN-ACC-2017-119.-
2017 - 4 p.
- Published in : 10.18429/JACoW-IPAC2017-MOPAB007
Fulltext: PDF;
In : 8th International Particle Accelerator Conference, Copenhagen, Denmark, 14 - 19 May 2017, pp.MOPAB007
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4.
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Upgrade of the SPS Ion Injection System
/ Uythoven, Jan (CERN) ; Borburgh, Jan (CERN) ; Bravin, Enrico (CERN) ; Burger, Stephane (CERN) ; Carlier, Etienne (CERN) ; Cravero, Jean-Marc (CERN) ; Ducimetière, Laurent (CERN) ; Gilardoni, Simone (CERN) ; Goddard, Brennan (CERN) ; Hansen, Jan (CERN) et al.
As part of the LHC Injectors Upgrade Project (LIU) the injection system into the SPS will be upgraded for the use with ions. The changes will include the addition of a Pulse Forming Line parallel to the existing PFN to power the kicker magnets MKP-S. [...]
CERN-ATS-2015-003; CERN-ACC-2015-003.-
2015 - 4 p.
- Published in : (2015) , pp. THPF099
Published version from JACoW: PDF; External link: JACOW
In : 6th International Particle Accelerator Conference, Richmond, VA, USA, 3 - 8 May 2015, pp.THPF099
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5.
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Changes to the Transfer Line Collimation System for the High-Luminosity LHC Beams
/ Kain, V (CERN) ; Aberle, O (CERN) ; Bracco, C (CERN) ; Fraser, M (CERN) ; Galleazzi, F (CERN) ; Gianfelice-Wendt, E (Fermilab) ; Kosmicki, A (CERN) ; Maciariello, F (CERN) ; Meddahi, M (CERN) ; Nuiry, F X (CERN) et al.
The current LHC transfer line collimation system will not be able to provide enough protection for the high brightness beams in the high-luminosity LHC era. The new collimation system will have to attenuate more and be more robust than its predecessor. [...]
FERMILAB-CONF-15-271-AD; CERN-ACC-2015-357.-
2015 - 4 p.
- Published in : (2015) , pp. TUPTY048
Fulltext: PDF; External link: JACOW
In : 6th International Particle Accelerator Conference, Richmond, VA, USA, 3 - 8 May 2015, pp.TUPTY048
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6.
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LHC Injection Protection Devices, Thermo-mechanical Studies through the Design Phase
/ Lamas Garcia, Inigo (CERN) ; Biancacci, Nicolo (CERN) ; Bregliozzi, Giuseppe (CERN) ; Calviani, Marco (CERN) ; Frankl, Matthias (CERN) ; Gentini, Luca (CERN) ; Gilardoni, Simone (CERN) ; Lechner, Anton (CERN) ; Perillo-Marcone, Antonio (CERN) ; Salvant, Benoit (CERN) et al.
The TDI is a beam intercepting device installed on the two injection lines of the LHC. Its function is to protect the superconducting machine elements during injection in the case of a malfunction of the injection kickers. [...]
CERN-ACC-2016-153.-
2016 - 4 p.
- Published in : 10.18429/JACoW-IPAC2016-THPMY019
Published version from JACoW: PDF;
In : 7th International Particle Accelerator Conference, Busan, Korea, 8 - 13 May 2016, pp.THPMY019
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7.
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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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8.
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3D Carbon/Carbon composites for beam intercepting devices at CERN
/ Nuiry, François-Xavier (CERN) ; Calviani, Marco (CERN) ; Bergeret, Maxime (CERN) ; Pianese, Stefano (CERN) ; Butcher, Mark (CERN) ; Grec, Lucian-Mircea (CERN) ; Lechner, Anton (CERN) ; Frankl, Matthias Immanuel (CERN) ; Maciariello, Fausto Lorenzo (ASML, San Diego) ; Pichon, Thierry (Ariane Group, Saint-Medard-en-Jalles)
3D Carbon/Carbon (3D CC) is a well‐known industrial composite material for high‐temperature applications. One of its main advantages resides in its ability to maintain good material characteristics at elevated temperatures (higher than 2700°C), which makes it potentially interesting for beam interaction applications where high strength at high temperature is required. [...]
2019 - 6 p.
- Published in : Mater. Des. Proc. Comm. 1 (2019) e33
Fulltext: PDF;
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9.
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Impedance Measurements and Simulations on the TCTP and TDI LHC Collimators
/ Biancacci, Nicolo (CERN) ; Caspers, Fritz (CERN) ; Frasciello, Oscar (LNF, Dafne Light) ; Grudiev, Alexej (CERN) ; Kuczerowski, Joseph (CERN) ; Lamas Garcia, Inigo (CERN) ; Lechner, Anton (CERN) ; Mostacci, Andrea (U. Rome La Sapienza (main)) ; Mounet, Nicolas (EPFL-ISIC, Lausanne) ; Métral, Elias (CERN) et al.
The LHC collimation system is a critical element for the safe operation of the LHC machine and is subject to continuous performance monitoring, hardware upgrade and optimization. In this work we will address the impact on impedance of the upgrades performed on the TDI injection protection collimator, where the absorber material has been changed to mitigate the device heating observed in machine operation, and on selected secondary (TCS) and tertiary (TCT) collimators, where beam position monitors (BPM) have been embedded for faster jaw alignment. [...]
CERN-ACC-2016-310.-
2016 - 4 p.
- Published in : 10.18429/JACoW-IPAC2016-MOPOR010
Published version from JACoW: PDF;
In : 7th International Particle Accelerator Conference, Busan, Korea, 8 - 13 May 2016, pp.MOPOR010
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10.
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Analysis on the thermal response to beam impedance heating of the post LS2 Proton Synchrotron beam dump
/ Teofili, Lorenzo (CERN ; INFN, Rome ; U. Rome La Sapienza (main)) ; Giordano, Francesco (CERN) ; Lamas, Inigo (CERN) ; Marongiu, Marco (U. Rome La Sapienza (main)) ; Migliorati, Mauro (U. Rome La Sapienza (main) ; INFN, Rome ; CERN) ; Nuiry, Francois-Xavier (CERN) ; Romagnoli, Giulia (CERN) ; Salvant, Benoit (CERN)
The High Luminosity Large Hadron Collider (HL-LHC) and the LHC-Injection Upgrade (LIU) projects at CERN are upgrading the whole CERN accelerators chain to increase beam brightness and intensity. In this scenario, some critical machine components have to be redesigned and rebuilt. [...]
CERN-ACC-2019-253.-
2019 - 8 p.
- Published in : (2019) , pp. THPTS065
- Published in : J. Phys.: Conf. Ser. 1350 (2019) 012169
Preprint: PDF;
In : 10th International Particle Accelerator Conference, Melbourne, Australia, 19 - 24 May 2019, pp.THPTS065
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