CERN Accelerating science

Article
Report number	CERN-AB-2006-031 ; CLIC-Note-678
Title	Status of the Fatigue Studies on the CLIC Accelerating Structures
Author(s)	Calatroni, S (CERN) ; Heikkinen, Samuli Tapio (Helsinki University of Technology, Finland ; CERN) ; Neupert, H (CERN) ; Wuensch, Walter (CERN)
Corporate Author(s)	CERN. Geneva
Publication	2006
Imprint	13 Jul 2006
Number of pages	4
Note	revised version submitted on 2006-09-13 16:56:55
In:	10th European Particle Accelerator Conference, Edinburgh, UK, 26 - 30 Jun 2006, pp.858
Subject category	Accelerators and Storage Rings
Accelerator/Facility, Experiment	CLIC
Free keywords	CERN ; CLIC ; laser ; radio-frequency ; target
Abstract	The need for high accelerating gradients for the future multi-TeV e+e- Compact Linear Collider (CLIC) imposes considerable constraints on the materials of the accelerating structures. The surfaces exposed to high pulsed RF (Radio Frequency) currents are subject to cyclic thermal stresses which are expected to induce surface break up by fatigue. Since no fatigue data exists in the literature up to very large numbers of cycles and for the particular stress pattern present in RF cavities, a comprehensive study of copper alloys in this parameter range has been initiated. Fatigue data for selected copper alloys in different states are presented
Copyright/License	publication: (License: CC-BY)

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