Title :
Effect of Mg-, Zr-, and Ta-doping on scintillation properties of Gd2SiO5:Ce crystal
Author :
Shimizu, S. ; Sumiya, K. ; Ishibashi, H. ; Senguttvan, N. ; Redkin, B.S. ; Ishii, M. ; Kobayashi, M. ; Susa, K. ; Murayama, H.
Author_Institution :
Dept. of Phys., Rikkyo Univ., Tokyo, Japan
Abstract :
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)y -doped Gd2-xSiO5:Cex (x=0.5, y=0.0002%∼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.
Keywords :
biomedical imaging; biomedical materials; cerium; gadolinium compounds; magnesium; scintillation; tantalum; transparency; zirconium; GSO:Ce scintillator materials; Gd2SiO5:Ce,Mg; Gd2SiO5:Ce,Ta; Gd2SiO5:Ce,Zr; doping effects; medical imaging scanners; optical transparency; positron emission tomograph; scintillation decay curve; scintillation properties; Biomedical imaging; Biomedical optical imaging; Crystalline materials; Gamma ray detectors; Optical sensors; Photonic crystals; Physics; Positron emission tomography; Radioactive decay; Stimulated emission;
Journal_Title :
Nuclear Science, IEEE Transactions on
DOI :
10.1109/TNS.2003.815149
