• Open Access

Thermostructural characterization and structural elastic property optimization of novel high luminosity LHC collimation materials at CERN

M. Borg, A. Bertarelli, F. Carra, P. Gradassi, J. Guardia-Valenzuela, M. Guinchard, G. Arnau Izquierdo, P. Mollicone, O. Sacristan-de-Frutos, and N. Sammut
Phys. Rev. Accel. Beams 21, 031001 – Published 5 March 2018

Abstract

The CERN Large Hadron Collider is currently being upgraded to operate at a stored beam energy of 680 MJ through the High Luminosity upgrade. The LHC performance is dependent on the functionality of beam collimation systems, essential for safe beam cleaning and machine protection. A dedicated beam experiment at the CERN High Radiation to Materials facility is created under the HRMT-23 experimental campaign. This experiment investigates the behavior of three collimation jaws having novel composite absorbers made of copper diamond, molybdenum carbide graphite, and carbon fiber carbon, experiencing accidental scenarios involving the direct beam impact on the material. Material characterization is imperative for the design, execution, and analysis of such experiments. This paper presents new data and analysis of the thermostructural characteristics of some of the absorber materials commissioned within CERN facilities. In turn, characterized elastic properties are optimized through the development and implementation of a mixed numerical-experimental optimization technique.

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  • Received 20 June 2017

DOI:https://doi.org/10.1103/PhysRevAccelBeams.21.031001

Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.

Published by the American Physical Society

Physics Subject Headings (PhySH)

Accelerators & Beams

Authors & Affiliations

M. Borg1, A. Bertarelli2, F. Carra2, P. Gradassi2, J. Guardia-Valenzuela2, M. Guinchard2, G. Arnau Izquierdo2, P. Mollicone1, O. Sacristan-de-Frutos2, and N. Sammut1

  • 1University of Malta, Msida MSD 2080, Malta
  • 2CERN, CH-1211 Geneve 23, Switzerland

  • *Corresponding author. pierluigi.mollicone@um.edu.mt

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Vol. 21, Iss. 3 — March 2018

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