کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1889181 | 1533450 | 2007 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Fluorozirconate-based glass ceramic X-ray detectors for digital radiography
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
تشعشع
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چکیده انگلیسی
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 17μm. 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 CdWO4 scintillator. These results demonstrate that FZ-based glass ceramics are good candidates for digital radiography, either for storage phosphor or scintillator applications.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Radiation Measurements - Volume 42, Issues 4â5, AprilâMay 2007, Pages 632-637
Journal: Radiation Measurements - Volume 42, Issues 4â5, AprilâMay 2007, Pages 632-637
نویسندگان
Stefan Schweizer, Jacqueline A. Johnson,