Title :
New photostimulable phosphor materials for digital radiography
Author :
Nanto, H. ; Miyazaki, M. ; Imai, A. ; Komori, H. ; Douguchi, Y. ; Kusano, E. ; Kinbara, A.
Author_Institution :
Adv. Mater. Sci. R&D Center, Kanazawa Inst. of Technol., Ishikawa, Japan
Abstract :
Intense photostimulated luminescence (PSL) is observed, for the first time, in X-ray-irradiated KBr:Eu and KCIxBr1-x :Eu phosphor ceramics. The peak in the stimulation spectrum for the PSL red-shifted with increasing the Br content of KCIxBr 1-x:Eu phosphor ceramics. The intensity of the PSL with a peak of about 420 nm increases linearly with increasing X-ray irradiation dose over a wide range. The KBr:Eu phosphor exhibites excellent fading characteristics at room temperature (RT) in the dark. The mechanism of fading of the PSL is also discussed
Keywords :
biomedical materials; ceramics; diagnostic radiography; phosphors; 420 nm; KBr:Eu; KCIxBr1-x:Eu phosphor ceramics; X-ray-irradiated KBr:Eu; dark; digital radiography; fading characteristics; fading mechanism; photostimulable phosphor materials; room temperature; stimulation spectrum peak; Ceramics; Charge carrier processes; Electron traps; Fading; Luminescence; Materials science and technology; Phosphors; Radiography; X-ray imaging; X-ray lasers;
Conference_Titel :
Nuclear Science Symposium, 1999. Conference Record. 1999 IEEE
Conference_Location :
Seattle, WA
Print_ISBN :
0-7803-5696-9
DOI :
10.1109/NSSMIC.1999.842774
