CERN Accelerating science

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Title	High energy beam impact tests on a LHC tertiary collimator at the CERN high-radiation to materials facility
Author(s)	Cauchi, Marija (CERN ; Malta U.) ; Aberle, O (CERN) ; Assmann, R W (CERN) ; Bertarelli, A (CERN) ; Carra, F (CERN) ; Cornelis, K (CERN) ; Dallocchio, A (CERN) ; Deboy, D (CERN) ; Lari, L (CERN) ; Redaelli, S (CERN) ; Rossi, A (CERN) ; Salvachua, B (CERN) ; Mollicone, P (Malta U.) ; Sammut, N (Malta U.)
Publication	2014
Number of pages	14
In:	Phys. Rev. Spec. Top. Accel. Beams 17 (2014) 021004
DOI	10.1103/PhysRevSTAB.17.021004
Subject category	High-Energy Accelerators and Colliders ; Accelerators and Storage Rings
Abstract	The correct functioning of a collimation system is crucial to safely operate highly energetic particle accelerators, such as the Large Hadron Collider (LHC). The requirements to handle high intensity beams can be demanding. In this respect, investigating the consequences of LHC particle beams hitting tertiary collimators (TCTs) in the experimental regions is a fundamental issue for machine protection. An experimental test was designed to investigate the robustness and effects of beam accidents on a fully assembled collimator, based on accident scenarios in the LHC. This experiment, carried out at the CERN High-Radiation to Materials (HiRadMat) facility, involved 440 GeV proton beam impacts of different intensities on the jaws of a horizontal TCT. This paper presents the experimental setup and the preliminary results obtained, together with some first outcomes from visual inspection and a comparison of such results with numerical simulations.
Copyright/License	publication: © 2014-2025 The Author(s) (License: CC-BY-3.0)

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