Lederer, S. ; Akhmadaliev, S. ; Borany, J. von ; Gütlich, E. ; Lieberwirth, A. ; Zimmermann, J. ; Ensinger, W. (2015)
High-temperature scintillation of alumina under 32MeV 63Cu5+ heavy-ion irradiation.
In: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 359
doi: 10.1016/j.nimb.2015.07.131
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
Polycrystalline alumina samples (alpha-Al2O3, purity: 99.8%) were irradiated with Cu-63(5+) ions of 32 MeV kinetic energy (approximate to 0.5 MeV/u) up to fluences of 10(14) ions/cm(2) at various temperatures ranging from 295 to 973 K. Ion beam induced luminescence and emission spectra were monitored at wavelengths from 320 to 800 nm. Optical absorption measurements were performed to deduce color center formation. Results were evaluated by the Birks model to determine the material's radiation hardness. The applicability of alumina as scintillation screens for ion beam diagnostics could be extended by enhanced temperature operation. Analysis of the emission spectra shows a complex color center formation behavior as a function of fluence and temperature. (C) 2015 Elsevier B.V. All rights reserved.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2015 |
| Autor(en): | Lederer, S. ; Akhmadaliev, S. ; Borany, J. von ; Gütlich, E. ; Lieberwirth, A. ; Zimmermann, J. ; Ensinger, W. |
| Art des Eintrags: | Bibliographie |
| Titel: | High-temperature scintillation of alumina under 32MeV 63Cu5+ heavy-ion irradiation |
| Sprache: | Englisch |
| Publikationsjahr: | 15 September 2015 |
| 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: | 359 |
| DOI: | 10.1016/j.nimb.2015.07.131 |
| Kurzbeschreibung (Abstract): | Polycrystalline alumina samples (alpha-Al2O3, purity: 99.8%) were irradiated with Cu-63(5+) ions of 32 MeV kinetic energy (approximate to 0.5 MeV/u) up to fluences of 10(14) ions/cm(2) at various temperatures ranging from 295 to 973 K. Ion beam induced luminescence and emission spectra were monitored at wavelengths from 320 to 800 nm. Optical absorption measurements were performed to deduce color center formation. Results were evaluated by the Birks model to determine the material's radiation hardness. The applicability of alumina as scintillation screens for ion beam diagnostics could be extended by enhanced temperature operation. Analysis of the emission spectra shows a complex color center formation behavior as a function of fluence and temperature. (C) 2015 Elsevier B.V. All rights reserved. |
| Freie Schlagworte: | Alumina, Heavy-ion irradiation, Scintillation yield decrease, High-temperature scintillation, Thermal annealing |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Materialanalytik |
| Hinterlegungsdatum: | 01 Mär 2016 09:59 |
| Letzte Änderung: | 26 Jul 2021 09:42 |
| PPN: | |
| Sponsoren: | This work was supported by the German Federal Ministry of Education and Research (BMBF Grant No. 05P12RDRBJ). |
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