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

Volume

3

fYear

1999

fDate

1999

Firstpage

1202

Abstract

Intense photostimulated luminescence (PSL) is observed, for the first time, in X-ray-irradiated KBr:Eu and KCI_xBr_1-x:Eu phosphor ceramics. The peak in the stimulation spectrum for the PSL red-shifted with increasing the Br content of KCI_xBr _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; KCI_xBr_1-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;

fLanguage

English

Publisher

ieee

Conference_Titel

Nuclear Science Symposium, 1999. Conference Record. 1999 IEEE

Conference_Location

Seattle, WA

ISSN

1082-3654

Print_ISBN

0-7803-5696-9

Type

conf

DOI

10.1109/NSSMIC.1999.842774

Filename

842774