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High-Energy Heavy Ion Irradiation of Al2O3, MgO and CaF2

Hanžek, Juraj; Dubček, Pavo; Fazinić, Stjepko; Tomić Luketić, Kristina; Karlušić, Marko (2022) High-Energy Heavy Ion Irradiation of Al2O3, MgO and CaF2. Materials, 15 . ISSN 1996-1944

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Abstract

High-energy heavy ion irradiation can produce permanent damage in the target material if the density of deposited energy surpasses a material-dependent threshold value. It is known that this threshold can be lowered in the vicinity of the surface or in the presence of defects. In the present study, we established threshold values for Al2O3, MgO and CaF2 under the abovementioned conditions, and found those values to be much lower than expected. By means of atomic force microscopy and Rutherford backscattering spectrometry in channelling mode, we present evidence that ion beams with values of 3 MeV O and 5 MeV Si, despite the low density of deposited energy along the ion trajectory, can modify the structure of investigated materials. The obtained results should be relevant for radiation hardness studies because, during high-energy ion irradiation, unexpected damage build-up can occur under similar conditions.

Item Type: Article
Uncontrolled Keywords: ion irradiation ; AFM ; RBS/c ; Al2O3 ; MgO ; CaF2
Subjects: NATURAL SCIENCES > Physics
Divisions: Division of Experimental Physics
Division of Materials Physics
Projects:
Project titleProject leaderProject codeProject type
Dinamika defekta u nanomaterijalima: istraživanje putem eksperimenata s ionskim tragovimaKarlušić, MarkoIP-2018-01-2786HRZZ
Depositing User: Marko Karlušić
Date Deposited: 26 Apr 2022 10:58
URI: http://fulir.irb.hr/id/eprint/7327
DOI: 10.3390/ma15062110

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