| Autor: |
Zhitao Kang, Christopher J. Summers, G. Mednikova, H. Menkara, Roger D. Durst, T. Thorson, Y. Diawara, B. K. Wagner |
| Rok vydání: |
2006 |
| Předmět: |
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| Zdroj: |
Journal of Luminescence. 117:156-162 |
| ISSN: |
0022-2313 |
| DOI: |
10.1016/j.jlumin.2005.05.002 |
| Popis: |
The effect of the annealing atmosphere on the luminescent efficiency of ZnTe:O phosphors for X-ray imaging applications was studied. The phosphors were doped by ball-milling bulk ZnTe crystals in an O2 atmosphere and annealed in various atmospheres: vacuum, N2 or forming gas (95%N2/5%H2). All samples exhibited a deep red emission centered at 680 nm.The samples annealed in forming gas atmosphere exhibited an X-ray luminescent efficiency five times higher than the samples annealed in vacuum or N2 atmospheres, which was attributed to the removal of surface tellurium oxides. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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