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TitleBeam-Impact Validation of HL-LHC Collimator Materials: the "MultiMat-2" Experiment
  • F. Carra, A. Bertarelli, A. Perez Fontenla, A. Lechner, A. Perillo Marcone, C. Accettura, D. Glaude, E. Farina, E. Rigutto, E. Berthome, F. Nuiry, J. Guardia, M. Guinchard, N. Charitonidis, O. Sacristan De Frutos, R. Bruce, S. Redaelli, W. Vollenberg
    European Organization for Nuclear Research
  • P. Simon
    GSI Helmholtzzentrum für Schwerionenforschung GmbH
  • S. Pfeiffer
    European Organization for Nuclear Research (CERN)
AbstractIn 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. Manufacturing of these materials was then passed to the industry, leading to a series production for use in the collimators installed in the LHC during Long Shutdown 2 (LS2). The industrial versions of bulk and coating materials were tested in HiRadMat in 2021 in the “MultiMat-2” experiment, that efficiently re-used of the same experimental test bench as for “MultiMat”. This new experiment proved the reliability of the absorbers installed in LS2, and confirmed the possible use of alternative materials and coatings for the next LS3 collimator production. This paper describes the preparation and beam parameters of “MultiMat-2”, the experimental and data-acquisition equipment and the main results of the experiment.
Paperdownload: WEPM109.pdf
CiteBibTeX, LaTeX, Text/Word, RIS, EndNote
Conference14th International Particle Accelerator Conference
LocationVenice, Italy
Date07-12 May 2023
PublisherJACoW Publishing, Geneva, Switzerland
Editorial BoardRalph Assmann - Deutsches Elektronen-Synchrotron DESY Peter McIntosh - Science and Technology Facilities Council (STFC/DL/ASTeC) Giovanni Bisoffi - Istituto Nazionale di Fisica Nucleare (INFN/LNL) Alessandro Fabris - Elettra-Sincrotrone Trieste S.C.p.A. Ivan Andrian - Elettra-Sincrotrone Trieste S.C.p.A. Giulia Vinicola - Istituto Nazionale di Fisica Nucleare (INFN/LNF)
Online ISBN978-3-95450-231-8
Online ISSN2673-5490
Received11 May 2023
Revised16 June 2023
Accepted16 June 2023
Issued26 September 2023