publication . Article . Other literature type . 2019

Novel LHC collimator materials: High-energy Hadron beam impact tests and nondestructive postirradiation examination

Name: Novel LHC collimator materials: High-energy Hadron beam impact tests and nondestructive postirradiation examination
Keywords: Mechanical Engineering, General Materials Science, Mechanics of Materials, General Mathematics, Civil and Structural Engineering, Accelerators and Storage Rings

Giorgia Gobbi; Stefano Redaelli; Federico Carra; Jorge Guardia-Valenzuela; Alessandro Bertarelli;

Open Access

Published: 18 Jan 2019 Journal: Mechanics of Advanced Materials and Structures, volume 27, pages 1,518-1,530 (issn: 1537-6494, eissn: 1537-6532,

Publisher: Informa UK Limited

Summary

Abstract

The LHC collimation system must adopt materials with excellent thermal shock resistance, high electrical conductivity, geometrical stability, and radiation hardness. Two novel composites, Molybdenum–Carbide–Graphite and Copper–Diamond, are proposed for the LHC collimation upgrade. A postirradiation examination was performed to assess the status of the composites, tested under intense proton beam impacts at the CERN HiRadMat facility. Metrology measurements, computed tomography, and 3D topography allowed to evaluate the localized spallation induced by the beam. This article provides an overview of the thermophysical characterization of the two composites before i...

doi: 10.1080/15376494.2018.1518501

Subjects

free text keywords: Mechanical Engineering, General Materials Science, Mechanics of Materials, General Mathematics, Civil and Structural Engineering, Accelerators and Storage Rings, Radiation hardening, Collimator, law.invention, law, Hadron, Electrical resistivity and conductivity, Beam (structure), Collimated light, Optics, business.industry, business, Materials science, Large Hadron Collider, Thermal shock

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