| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5404331 | Journal of Luminescence | 2006 | 7 Pages |
Abstract
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 680Â 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.
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Authors
Z.T. Kang, H. Menkara, B.K. Wagner, C.J. Summers, R. Durst, Y. Diawara, G. Mednikova, T. Thorson,