Author: Guardia Valenzuela, J.
Paper Title Page
MOPTS093 Ultra-High Vacuum Characterization of Molybdenum-Carbide Graphite for HL-LHC Collimators 1078
  • F. Carra, C. Accettura, A. Bertarelli, G. Bregliozzi, G. Cattenoz, S. Redaelli, M. Taborelli
    CERN, Meyrin, Switzerland
  • M. Beghi
    POLIMI, Milano, Italy
  • J. Guardia Valenzuela
    Universidad de Zaragoza, Zaragoza, Spain
  Funding: This work has received funding from the European Union’s Horizon 2020 Research and Innovation programme under Grant Agreement No. 730871. Research supported by the HL-LHC project
In view of the High-Luminosity upgrade of the Large Hadron Collider (LHC) collimation system, a family of novel molybdenum-carbide graphite (MoGr) composites was developed to meet the challenging requirements of HL-LHC beam-halo collimation, in particular the electrical conductivity and thermo-mechanical performances. The Ultra-High Vacuum (UHV) behaviour of this material was extensively characterized to assess its compatibility with the accelerator’s specifications. The results presented in this paper correlate the outgassing behaviour with the microscopic features of MoGr compared to other graphite-based materials. Residual gas analysis (RGA) was exploited to optimize post-production treatments.
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About • paper received ※ 12 April 2019       paper accepted ※ 21 May 2019       issue date ※ 21 June 2019  
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