Lederer, S. ; Akhmadaliev, S. ; Forck, P. ; Gütlich, E. ; Lieberwirth, A. ; Ensinger, Wolfgang (2015)
Thermal annealing behavior of α-Al2O3 scintillation screens.
In: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 365 (Part B)
doi: 10.1016/j.nimb.2015.08.024
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
Polycrystalline alumina samples (α-Al2O3, purity: 99.8%) were irradiated by 63Cu heavy ions (E = 0.5 MeV/u) at various fluences. After irradiation, absorption measurements were performed within the wavelength range from 200 to 1000 nm to evaluate color center evolution. Thermal annealing behavior of the created defects was investigated with respect to annealing temperature and duration. Complex color center formation processes depending on particle fluence and temperature could be observed. Calculated activation energies necessary for F- and F+-center migration are ~0.3 eV for temperatures ranging from RT to ~673 K.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2015 |
| Autor(en): | Lederer, S. ; Akhmadaliev, S. ; Forck, P. ; Gütlich, E. ; Lieberwirth, A. ; Ensinger, Wolfgang |
| Art des Eintrags: | Bibliographie |
| Titel: | Thermal annealing behavior of α-Al2O3 scintillation screens |
| Sprache: | Englisch |
| Publikationsjahr: | 15 Dezember 2015 |
| Verlag: | Elsevier ScienceDirect |
| 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: | 365 |
| (Heft-)Nummer: | Part B |
| DOI: | 10.1016/j.nimb.2015.08.024 |
| URL / URN: | http://www.sciencedirect.com/science/article/pii/S0168583X15... |
| Kurzbeschreibung (Abstract): | Polycrystalline alumina samples (α-Al2O3, purity: 99.8%) were irradiated by 63Cu heavy ions (E = 0.5 MeV/u) at various fluences. After irradiation, absorption measurements were performed within the wavelength range from 200 to 1000 nm to evaluate color center evolution. Thermal annealing behavior of the created defects was investigated with respect to annealing temperature and duration. Complex color center formation processes depending on particle fluence and temperature could be observed. Calculated activation energies necessary for F- and F+-center migration are ~0.3 eV for temperatures ranging from RT to ~673 K. |
| Freie Schlagworte: | Alumina, Color center, Heavy-ion irradiation, Scintillation screens, Thermal annealing |
| Zusätzliche Informationen: | Part of special issue: Swift Heavy Ions in Matter, 18-21 May, 2015, Darmstadt, Germany |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Materialanalytik |
| Hinterlegungsdatum: | 04 Dez 2015 14:04 |
| Letzte Änderung: | 26 Nov 2020 08:33 |
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