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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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Dynamic Response of Advanced Materials Impacted by Particle Beams: The MultiMat Experiment
/ Pasquali, M (CERN) ; Bertarelli, A (CERN) ; Accettura, C (CERN ; Milan Polytechnic) ; Berthome, E (CERN) ; Bianchi, L (CERN) ; Bolz, P (Darmstadt, GSI) ; Carra, F (CERN) ; Fichera, C (BIAM, St Paul lez Durance) ; Frankl, M I (CERN) ; Furness, T (Huddersfield U.) et al.
The introduction at CERN of new extremely energetic particle accelerators, such as the high-luminosity large hadron collider (HL-LHC) or the proposed future circular collider (FCC), will increase the energy stored in the circulating particle beams by almost a factor of two (from 360 to 680 MJ) and of more than 20 (up to 8500 MJ), respectively. In this scenario, it is paramount to assess the dynamic thermomechanical response of materials presently used, or being developed for future use, in beam intercepting devices (such as collimators, targets, dumps, absorbers, spoilers, windows, etc.) exposed to potentially destructive events caused by the impact of energetic particle beams. [...]
publ - 30 p.
- Published in : J. Dynamic Behavior Mater. 5 (2019) 266-295
External link: Fulltext from publisher
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The “Multimat” experiment at CERN HiRadMat facility: advanced testing of novel materials and instrumentation for HL-LHC collimators
/ Carra, F (CERN ; Turin Polytechnic) ; Bertarelli, A (CERN) ; Berthomé, E (CERN) ; Fichera, C (CERN) ; Furness, T (Huddersfield U.) ; Guinchard, M (CERN) ; Mettler, L K (CERN) ; Portelli, M (CERN ; Malta U.) ; Redaelli, S (CERN) ; Sacristan de Frutos, O (CERN)
The increase of the stored beam energy in future particle accelerators, such as the HL-LHC and the FCC, calls for a radical upgrade in the design, materials and instrumentation of Beam Intercepting Devices (BID), such as collimators Following successful tests in 2015 that validated new composite materials and a novel jaw design conceived for the HL-LHC collimators, a new HiRadMat experiment, named “HRMT36-MultiMat”, is scheduled for autumn 2017. Its objective is to determine the behaviour under high intensity proton beams of a broad range of materials relevant for collimators and beam intercepting devices, thin-film coatings and advanced equipment. [...]
ARIES-2007-002; CERN-ACC-2017-333.-
2017 - 7 p.
- Published in : J. Phys.: Conf. Ser.
- Published in : (2017) , pp. MOPAB005
Fulltext: PDF;
In : 8th International Particle Accelerator Conference, Copenhagen, Denmark, 14 - 19 May 2017, pp.MOPAB005
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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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Dynamic Testing and Characterization of Advanced Materials in a New Experiment at CERN HiRadMat Facility
/ Bertarelli, Alessandro (CERN) ; Accettura, Carlotta (CERN ; Milan Polytechnic) ; Berthomé, Emmanuel (CERN) ; Bianchi, Laura (CERN) ; Bolz, Philipp (Darmstadt, GSI) ; Carra, Federico (CERN) ; Fichera, Claudio (CERN) ; Frankl, Matthias (CERN) ; Furness, Thomas (Huddersfield U.) ; Gobbi, Giorgia (CERN) et al.
An innovative and comprehensive experiment (named “Multimat”) was successfully carried out at CERN HiRadMat facility on 18 different materials relevant for Collimators and Beam Intercepting Devices. Material samples, tested under high intensity proton pulses of 440 GeV/c, exceeding the energy density expected in HL-LHC, ranged from very light carbon foams to tungsten heavy alloys, including novel composites as graphite/carbides and metal/diamond without and with thin-film coatings. [...]
CERN-ACC-2018-064.-
2018 - 8 p.
- Published in : (2018) , pp. WEPMF071
- Published in : J. Phys.: Conf. Ser. 1067 (2018) 082021
Fulltext: PDF;
In : 9th International Particle Accelerator Conference, Vancouver, Canada, 29 Apr - 4 May 2018, pp.WEPMF071
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Thermomechanical Characterisation of Copper Diamond and Benchmarking with the MultiMat Experiment
/ Portelli, Marcus (Malta U. ; CERN) ; Pasquali, Michele (Rome U.) ; Carra, Federico (CERN) ; Bertarelli, Alessandro (CERN) ; Mollicone, Pierluigi (Malta U.) ; Sammut, Nicholas (Malta U.) ; de Frutos, Óscar Sacristán (CERN) ; Valenzuela, Jorge Guardia (CERN) ; Neubauer, Erich (Austrian Inst. Tech., Seibersdorf) ; Kitzmantel, Michael (Austrian Inst. Tech., Seibersdorf) et al.
The High-Luminosity Large Hadron Collider upgrade at CERN will result in an increase in the energy stored in the circulating particle beams, making it necessary to assess the thermomechanical performance of currently used and newly developed materials for use in beam intercepting devices such as collimators and absorbers. This study describes the thermomechanical characterisation of a novel copper diamond grade selected for use in tertiary collimators of the HL-LHC. [...]
2021 - 18 p.
- Published in : Shock and Vibration 2021 (2021) 8879400
Fulltext: PDF;
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Numerical and experimental benchmarking of the dynamic response of SiC and TZM specimens in the MultiMat experiment
/ Portelli, Marcus (U. Malta ; CERN) ; Bertarelli, Alessandro (CERN) ; Carra, Federico (CERN) ; Pasquali, Michele (CERN) ; Sammut, Nicholas (U. Malta) ; Mollicone, Pierluigi (U. Malta)
The MultiMat experiment was successfully conducted at CERN's HiRadMat facility, aiming to test novel high-performance materials for use in beam intercepting devices, allowing the derivation and validation of material constitutive models. This article provides an analysis of results for two materials tested in the experiment, namely Silicon Carbide and Titanium Zirconium Molybdenum, with the aim of benchmarking the material constitutive models currently available in literature with experimental results. [...]
2019
- Published in : Mech. Mater. 138 (2019) 103169
Fulltext: PDF;
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