| About this Abstract |
| Meeting |
MS&T22: Materials Science & Technology
|
| Symposium
|
Next Generation Biomaterials
|
| Presentation Title |
Using Glass Ceramics to Improve the Detective Quantum Efficiency of Indirect Flat Panel Detector Systems |
| Author(s) |
Russell Lee Leonard, Emily Moore, Austin Thomas, Lino Costa, Brian Canfield, Adrian Howansky, Anthony Lubinsky, Jacqueline Johnson |
| On-Site Speaker (Planned) |
Russell Lee Leonard |
| Abstract Scope |
Modern indirect flat panel detectors (I-FPDs) have many practical uses in medical imaging. The detective quantum efficiency (DQE) of these detectors could be improved, however, through increased detection of incident x-rays. The effectiveness of replacing the substrate in an I-FPD with a scintillating glass ceramic is explored. Several series of glass and glass-ceramic scintillators based on a borate glass composition were synthesized. Pertinent characteristics of the scintillators were determined including glass transition and crystallization temperatures and x-ray emission spectra. The light output of the samples in comparison to a commercial scintillator, gadolinium oxysulfide (GOS), was determined. Controlled crystallization in the glass-ceramic materials led to a greater than 100% increase in light output. The results indicate that incorporating scintillating glass-ceramic substrates into the I-FPD design will improve the DQE of the system. Several avenues exist for further improvements in performance. |