Sorokin, M. V. ; Schwartz, K. ; Trautmann, C. ; Dauletbekova, A. ; El-Said, A. S. (2014)
Modeling of defect accumulation in lithium fluoride crystals under irradiation with swift ions.
In: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 326
doi: 10.1016/j.nimb.2013.10.033
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
In many materials electronic excitations created around the trajectories of swift ions result in defect creation. Experimental observations often yield information on integral damage effects. The presented approach suggests a theoretical model to correlate integral damage results with microscopic effect produced by overlapping of individual single ion tracks. The model is applied to ion-beam induced defects in LiF crystals. Two aspects are treated separately viz. the ion-deposited energy distribution for a given fluence and the material response to the absorbed energy. The first problem is treated within the framework of stochastic superposition of ion tracks, taking into account the radial distribution of the energy transfer of a single ion. For lithium fluoride the creation of color centers is considered as the materials response. The dependence of the defect concentration on the absorbed energy is included in order to obtain the integral defect production.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2014 |
| Autor(en): | Sorokin, M. V. ; Schwartz, K. ; Trautmann, C. ; Dauletbekova, A. ; El-Said, A. S. |
| Art des Eintrags: | Bibliographie |
| Titel: | Modeling of defect accumulation in lithium fluoride crystals under irradiation with swift ions |
| Sprache: | Englisch |
| Publikationsjahr: | 1 Mai 2014 |
| Verlag: | Elsevier Science Publishing |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms |
| Jahrgang/Volume einer Zeitschrift: | 326 |
| DOI: | 10.1016/j.nimb.2013.10.033 |
| Kurzbeschreibung (Abstract): | In many materials electronic excitations created around the trajectories of swift ions result in defect creation. Experimental observations often yield information on integral damage effects. The presented approach suggests a theoretical model to correlate integral damage results with microscopic effect produced by overlapping of individual single ion tracks. The model is applied to ion-beam induced defects in LiF crystals. Two aspects are treated separately viz. the ion-deposited energy distribution for a given fluence and the material response to the absorbed energy. The first problem is treated within the framework of stochastic superposition of ion tracks, taking into account the radial distribution of the energy transfer of a single ion. For lithium fluoride the creation of color centers is considered as the materials response. The dependence of the defect concentration on the absorbed energy is included in order to obtain the integral defect production. |
| Freie Schlagworte: | Ion irradiation, Color centers, Defect accumulation, Absorbed energy |
| Zusätzliche Informationen: | 17th International Conference on Radiation Effects in Insulators (REI) |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Ionenstrahlmodifizierte Materialien |
| Hinterlegungsdatum: | 12 Jan 2015 12:09 |
| Letzte Änderung: | 15 Mär 2024 19:05 |
| PPN: | |
| Sponsoren: | A.S. El-Said acknowledges financial support provided by KACST through the Science and Technology Unit at KFUPM under project No. 11-NAN1650-04 as a part of the National Science, Technology and Innovation Plan. |
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