Effect of Mg-, Zr-, and Ta-doping on scintillation properties of Gd/sub 2/SiO/sub 5/:Ce crystal

We developed Mg-, Zr-, and Ta-doped GSO:Ce scintillator materials to improve scintillation properties for medical imaging scanners such as a positron emission tomograph (PET). The crystals of (Mg, Zr or Ta)/sub y/ -doped Gd/sub 2-x/SiO/sub 5/:Ce/sub x/ (x=0.5, y=0.0002%/spl sim/0.031%) were grown. T...

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Bibliographic Details
Published in:IEEE transactions on nuclear science 2003-08, Vol.50 (4), p.778-781
Main Authors: Shimizu, S., Sumiya, K., Ishibashi, H., Senguttvan, N., Redkin, B.S., Ishii, M., Kobayashi, M., Susa, K., Murayama, H.
Format: Article
Language:English
Subjects:
Biomedical imaging
Biomedical optical imaging
Crystalline materials
Gamma ray detectors
Optical sensors
Photonic crystals
Physics
Positron emission tomography
Radioactive decay
Stimulated emission
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Summary:We developed Mg-, Zr-, and Ta-doped GSO:Ce scintillator materials to improve scintillation properties for medical imaging scanners such as a positron emission tomograph (PET). The crystals of (Mg, Zr or Ta)/sub y/ -doped Gd/sub 2-x/SiO/sub 5/:Ce/sub x/ (x=0.5, y=0.0002%/spl sim/0.031%) were grown. The scintillation decay curve, rise time, light output, and optical transmittance of these crystals were measured. Improvement of optical transparency was found for GSO:Ce, Zr.
ISSN:0018-9499
1558-1578
DOI:10.1109/TNS.2003.815149