| title: | Luminescence and defects creation propcesses in scintillation materials |
|---|---|
| reg no: | ETF6548 |
| project type: | Estonian Science Foundation research grant |
| status: | accepted |
| institution: | Institute of Physics at University of Tartu |
| head of project: | Svetlana Zazubovitš |
| duration: | 01.01.2005 - 31.12.2007 |
| description: | The main goals of the project are (i) search and development of new and/or improved materials for scintillators applicable in medicine, science, security systems, industry, etc; (ii) achievement of a detailed understanding of the scintillation mechanism, the origin and the structure of the luminescence centers, and the mechanisms of the luminescence, recombination, energy transfer, charge transfer and defects creation processes in various scintillation materials; (iii) determination of the conditions (e.g., material composition, doping and co-doping ion type and optimum concentration, procedure of preparation and subsequent treatment, etc) which allow to achieve the needed scintillation characteristics. In 2005, we plan the detailed spectroscopic study of the intrinsic (e.g., Lu3+Al, Y3+Al) and impurity (e.g., Ce3+Al) antisite defects in single crystals of aluminium perovskites and garnets, as well as the comparative spectroscopic study of single crystalline films and single crystals of the undoped and Ce3+-doped luthetium aluminium garnets. We also plan the study of the photo-thermally stimulated processes of the exciton and defect-related states disintegration in some new lead tungstate crystals, prepared by different methods, thermally treated at different conditions and containing different concentration of various impurity and crystal structure defects. |
| project group | ||||
|---|---|---|---|---|
| no | name | institution | position | |
| 1. | Viktor Bitševin | Institute of Physics at University of Tartu | Up to 2000 senior scientist, since 2001 retired | |
| 2. | Aleksei Krasnikov | Institute of Physics at University of Tartu | PhD student, University of Tartu | |
| 3. | Andres Stolovitš | Institute of Physics at University of Tartu | Senior scientist | |
| 4. | Svetlana Zazubovitš | Institute of Physics at University of Tartu | senior researcher | |