Novel LHC collimator materials: High-energy Hadron beam impact tests and nondestructive postirradiation examination
| Autor: | Federico Carra, Stefano Redaelli, Alessandro Bertarelli, J. Guardia-Valenzuela, G. Gobbi |
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| Rok vydání: | 2019 |
| Předmět: |
Thermal shock
Materials science Astrophysics::High Energy Astrophysical Phenomena General Mathematics Hadron 02 engineering and technology Collimated light law.invention Optics 0203 mechanical engineering Electrical resistivity and conductivity law General Materials Science Radiation hardening Civil and Structural Engineering Large Hadron Collider business.industry Mechanical Engineering Collimator 021001 nanoscience & nanotechnology Accelerators and Storage Rings 020303 mechanical engineering & transports Mechanics of Materials 0210 nano-technology business Beam (structure) |
| Zdroj: | Mechanics of Advanced Materials and Structures |
| ISSN: | 1537-6532 1537-6494 |
| DOI: | 10.1080/15376494.2018.1518501 |
| Popis: | 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 irradiation and nondestructive postirradiation results. |
| Databáze: | OpenAIRE |
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