Grains size and shape dependence of luminescence efficiency of Lu2O3:Eu thin screens
The aim of this work is to provide a comparative evaluation of luminescence efficiency of Lu2O3:Eu phosphors screens, in transmission mode, prepared with different grain shape and size, and manufactured by the sedimentation method. More specific, three screens were prepared with spherical grains of...
| Main Authors: | , , , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2017-01-01
|
| Series: | Results in Physics |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2211379717301031 |
| _version_ | 1818534035423494144 |
|---|---|
| author | I.E. Seferis J. Zeler C. Michail S. David I. Valais G. Fountos N. Kalyvas A. Bakas I. Kandarakis E. Zych G.S. Panayiotakis |
| author_facet | I.E. Seferis J. Zeler C. Michail S. David I. Valais G. Fountos N. Kalyvas A. Bakas I. Kandarakis E. Zych G.S. Panayiotakis |
| author_sort | I.E. Seferis |
| collection | DOAJ |
| description | The aim of this work is to provide a comparative evaluation of luminescence efficiency of Lu2O3:Eu phosphors screens, in transmission mode, prepared with different grain shape and size, and manufactured by the sedimentation method. More specific, three screens were prepared with spherical grains of size 50 nm, 200 nm and 5 μm. Furthermore, two screens with rod-like shape grains and size of 500 nm and 1–8 μm. The behavior of Absolute Luminescence Efficiency (AE) at low energy X-rays (50 kVp) appeared to differ with the grains size and shape. Furthermore the rod-like grain screens appeared with reduced luminescence efficiency values. |
| first_indexed | 2024-12-11T18:06:31Z |
| format | Article |
| id | doaj.art-6d7b2d7b1839489894bdb184e7275b8c |
| institution | Directory Open Access Journal |
| issn | 2211-3797 |
| language | English |
| last_indexed | 2024-12-11T18:06:31Z |
| publishDate | 2017-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Physics |
| spelling | doaj.art-6d7b2d7b1839489894bdb184e7275b8c2022-12-22T00:55:42ZengElsevierResults in Physics2211-37972017-01-017980981Grains size and shape dependence of luminescence efficiency of Lu2O3:Eu thin screensI.E. Seferis0J. Zeler1C. Michail2S. David3I. Valais4G. Fountos5N. Kalyvas6A. Bakas7I. Kandarakis8E. Zych9G.S. Panayiotakis10Department of Medical Physics, Medical School, University of Patras, 26500 Patras, Greece; Faculty of Chemistry, University of Wroclaw, 14. F. Joliot-Curie Street, 50-383 Wroclaw, Poland; Corresponding author at: Faculty of Chemistry, University of Wroclaw, 14. F. Joliot-Curie Street, 50-383 Wroclaw, Poland.Faculty of Chemistry, University of Wroclaw, 14. F. Joliot-Curie Street, 50-383 Wroclaw, PolandRadiation Physics, Materials Technology and Biomedical Imaging Laboratory, Department of Biomedical Engineering, Technological Educational Institute of Athens, Egaleo, 12210 Athens, GreeceRadiation Physics, Materials Technology and Biomedical Imaging Laboratory, Department of Biomedical Engineering, Technological Educational Institute of Athens, Egaleo, 12210 Athens, GreeceRadiation Physics, Materials Technology and Biomedical Imaging Laboratory, Department of Biomedical Engineering, Technological Educational Institute of Athens, Egaleo, 12210 Athens, GreeceRadiation Physics, Materials Technology and Biomedical Imaging Laboratory, Department of Biomedical Engineering, Technological Educational Institute of Athens, Egaleo, 12210 Athens, GreeceRadiation Physics, Materials Technology and Biomedical Imaging Laboratory, Department of Biomedical Engineering, Technological Educational Institute of Athens, Egaleo, 12210 Athens, GreeceDepartment of Medical Radiological Technology, Technological Educational Institute of Athens, 12210 Athens, GreeceRadiation Physics, Materials Technology and Biomedical Imaging Laboratory, Department of Biomedical Engineering, Technological Educational Institute of Athens, Egaleo, 12210 Athens, GreeceFaculty of Chemistry, University of Wroclaw, 14. F. Joliot-Curie Street, 50-383 Wroclaw, PolandDepartment of Medical Physics, Medical School, University of Patras, 26500 Patras, GreeceThe aim of this work is to provide a comparative evaluation of luminescence efficiency of Lu2O3:Eu phosphors screens, in transmission mode, prepared with different grain shape and size, and manufactured by the sedimentation method. More specific, three screens were prepared with spherical grains of size 50 nm, 200 nm and 5 μm. Furthermore, two screens with rod-like shape grains and size of 500 nm and 1–8 μm. The behavior of Absolute Luminescence Efficiency (AE) at low energy X-rays (50 kVp) appeared to differ with the grains size and shape. Furthermore the rod-like grain screens appeared with reduced luminescence efficiency values.http://www.sciencedirect.com/science/article/pii/S2211379717301031 |
| spellingShingle | I.E. Seferis J. Zeler C. Michail S. David I. Valais G. Fountos N. Kalyvas A. Bakas I. Kandarakis E. Zych G.S. Panayiotakis Grains size and shape dependence of luminescence efficiency of Lu2O3:Eu thin screens Results in Physics |
| title | Grains size and shape dependence of luminescence efficiency of Lu2O3:Eu thin screens |
| title_full | Grains size and shape dependence of luminescence efficiency of Lu2O3:Eu thin screens |
| title_fullStr | Grains size and shape dependence of luminescence efficiency of Lu2O3:Eu thin screens |
| title_full_unstemmed | Grains size and shape dependence of luminescence efficiency of Lu2O3:Eu thin screens |
| title_short | Grains size and shape dependence of luminescence efficiency of Lu2O3:Eu thin screens |
| title_sort | grains size and shape dependence of luminescence efficiency of lu2o3 eu thin screens |
| url | http://www.sciencedirect.com/science/article/pii/S2211379717301031 |
| work_keys_str_mv | AT ieseferis grainssizeandshapedependenceofluminescenceefficiencyoflu2o3euthinscreens AT jzeler grainssizeandshapedependenceofluminescenceefficiencyoflu2o3euthinscreens AT cmichail grainssizeandshapedependenceofluminescenceefficiencyoflu2o3euthinscreens AT sdavid grainssizeandshapedependenceofluminescenceefficiencyoflu2o3euthinscreens AT ivalais grainssizeandshapedependenceofluminescenceefficiencyoflu2o3euthinscreens AT gfountos grainssizeandshapedependenceofluminescenceefficiencyoflu2o3euthinscreens AT nkalyvas grainssizeandshapedependenceofluminescenceefficiencyoflu2o3euthinscreens AT abakas grainssizeandshapedependenceofluminescenceefficiencyoflu2o3euthinscreens AT ikandarakis grainssizeandshapedependenceofluminescenceefficiencyoflu2o3euthinscreens AT ezych grainssizeandshapedependenceofluminescenceefficiencyoflu2o3euthinscreens AT gspanayiotakis grainssizeandshapedependenceofluminescenceefficiencyoflu2o3euthinscreens |