CERN Accelerating science

Published Articles
Report number	CERN-ACC-2015-0214
Title	Material-related issues at high-power and high-energy ion beam facilities
Author(s)	Bender, M. (Darmstadt, GSI) ; Severin, D. (Darmstadt, GSI) ; Tomut, M. (Darmstadt, GSI) ; Trautmann, C. (Darmstadt, GSI ; Darmstadt, Tech. U.)
Publication	2015
Imprint	2015-11-11
In:	10.1088/1742-6596/599/1/012039
DOI	10.1088/1742-6596/599/1/012039
Subject category	Accelerators and Storage Rings ; 11: Collimator Materials for fast High Density Energy Deposition (COMA-HDED) ; 11.2: Material testing for fast energy density deposition and high irradiation doses
Abstract	When solids are exposed to energetic ions (MeV-GeV), their physical and chemical structure can be severely modified. The change is governed by ultrafast dynamical processes starting from the deposition of large energy densities, electronic excitation and ionization processes, and finally damage creation in the atomic lattice system. In many materials, each projectile creates a cylindrical track with a few nanometers in diameter and up to many μm in length. To study and monitor the creation of damage, the GSI irradiation facility dedicated to materials science provides different in-situ and on-line techniques such as high resolution microscopy, X-ray diffraction, optical absorption spectroscopy, thermal imaging and residual gas analysis. The irradiation experiments can be performed under various gas atmospheres and under cryogenic or elevated temperature.

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