Fluorozirconate-based glass ceramic x-ray detectors for digital radiography.
Two-dimensional indirect digital X-ray detectors use either a storage phosphor or a scintillator as an imaging plate. A storage phosphor forms a latent X-ray image, which is subsequently readout by a photostimulable luminescence process. A scintillator produces a visible image during X-ray illumination. Commercial storage-phosphor image plates have relatively poor spatial resolution because of light scattering during the readout. To improve their image resolution, europium (II)-doped fluorozirconate (FZ)-based glasses containing barium chloride nanoparticles have been developed. X-ray imaging showed that these storage-phosphor plates can resolve features as small as 17 {micro}m. By using appropriate thermal-processing conditions, the FZ-based glass ceramics can also be made into transparent glass ceramic scintillators. Imaging tests showed that these scintillators have a spatial resolution and efficiency comparable to those of a single-crystal CdWO{sub 4} scintillator. These results demonstrate that FZ-based glass ceramics are good candidates for digital radiography, either for storage phosphor or scintillator applications.
- Research Organization:
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC); National Institutes of Health (NIH)
- DOE Contract Number:
- DE-AC02-06CH11357
- OSTI ID:
- 929223
- Report Number(s):
- ANL/ET/CP-118761; TRN: US0804057
- Journal Information:
- Radiat. Meas., Vol. 42, Issue 4-5 ; Apr./May 2007; Conference: 6th European Conference on Luminescent Detectors and Transformers (LUMDETR 2006); Jun 19-23, 2006; Lviv, Ukraine
- Country of Publication:
- United States
- Language:
- ENGLISH
Similar Records
A glass-ceramic plate for mammography.
Europium-doped barium chloride storage phosphor plate synthesized by pulsed laser deposition