Evaluating phosphors for use in X-ray image detectors by the effective performance index (EPI) method: application to Eu3+ activated yttrium based materials.
| Title | Evaluating phosphors for use in X-ray image detectors by the effective performance index (EPI) method: application to Eu3+ activated yttrium based materials. |
| Publication Type | Journal Article |
| Year of Publication | 1999 |
| Authors | Cavouras, D., Kandarakis I., Prassopoulos P., Kanellopoulos E., Nomicos C. D., & Panayiotakis G. S. |
| Journal | Technol Health Care |
| Volume | 7 |
| Issue | 1 |
| Pagination | 53-61 |
| Date Published | 1999 |
| ISSN | 0928-7329 |
| Keywords | Europium, Humans, Luminescent Measurements, Materials Testing, Radiographic Image Enhancement, Technology, Radiologic, X-Ray Intensifying Screens, Yttrium |
| Abstract | Phosphor materials used in X-ray image receptors were evaluated by the effective performance index (EPI). EPI describes the dependence of image quality on X-ray to light energy conversion and light diffusion processes. EPI was experimentally determined by means of X-ray luminescence (XLE) and MTF measurements performed on Y2O2S:Eu, Y2O3:Eu, and YVO4:Eu phosphors. The spectral compatibility of these materials with optical detectors (films, photocathodes, photodiodes) was also determined. Highest EPI values were obtained for Y2O2S:Eu-GaAs combination at mammographic energies. All phosphors could be of use in digital X-ray imaging being adequately compatible to silicon photodiodes employed in digital detectors. |
| Alternate Journal | Technol Health Care |
| PubMed ID | 10218600 |
