Improvement of scintillation properties and weakening of afterglow of Lu2xGd2(1-x) SiO5:Ce (LGSO, x=0.2) single crystals

Author

Usui, T. ; Shimizu, S. ; Shimura, N. ; Kurashige, K. ; Kurata, Y. ; Ishibashi, H. ; Yamamoto, H.

Author_Institution

Inorg. Products R&D Group, Hitachi Chem. Co., Ltd., Ibaraki

Volume

2

fYear

2006

fDate

Oct. 29 2006-Nov. 1 2006

Firstpage

1166

Lastpage

1169

Abstract

We developed Lu_2xGd_2(1-x)SiO₅:Ce (LGSO, x = 0.2) single crystal as gamma-ray detectors for medical imaging applications. Scintillation properties of LGSO were improved by optimized growth conditions and advanced post-growth annealing. As a result, the LGSO crystal showed large light output which is about twice that of GSO, good energy resolution and significantly weak afterglow.

Keywords

afterglows; biomedical imaging; gamma-ray detection; lutetium compounds; scintillation; LGSO crystal; Lu_0.4Gd_1.96SiO₅:Ce; Lu_2xGd_2(1-x)SiO₅:Ce single crystals; afterglow weakening; gamma-ray detectors; medical imaging applications; post-growth annealing; scintillation properties; Annealing; Atmosphere; Biomedical imaging; Oscilloscopes; Photonic crystals; Positron emission tomography; Pulse amplifiers; Sea measurements; Spectroscopy; Wavelength measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Nuclear Science Symposium Conference Record, 2006. IEEE

Conference_Location

San Diego, CA

ISSN

1095-7863

Print_ISBN

1-4244-0560-2

Electronic_ISBN

1095-7863

Type

conf

DOI

10.1109/NSSMIC.2006.356051

Filename

4179205