Scintillation properties of Lu/sub 0.4/Gd/sub 1.6/SiO/sub 5/:Ce (LGSO) crystal

Author

Shimizu, S. ; Kurashige, Kentarou ; Usui, T. ; Shimura, N. ; Sumiya, K. ; Senguttuvan, N. ; Gunji, A. ; Kamada, M. ; Ishibashi, Haruka

Volume

5

fYear

2004

fDate

16-22 Oct. 2004

Firstpage

2734

Lastpage

2736

Abstract

We developed Lu_0.4Gd_1.6SiO₅ (LGSO) crystal as a new scintillator for medical applications. Physical and scintillation properties of LGSO crystals with various Ce concentrations and annealing effect were studied. Its absorption coefficient at 511 keV gamma ray is 0.70 cm-1 which is the same as GSO. Annealed crystal with 2.0 mol% of Ce shows better scintillation properties such as high light output (twice that of GSO), good energy resolution (more than GSO), fast decay constant (65ns) and fast rise part (similar to LSO)

Keywords

annealing; biomedical equipment; cerium; gamma-ray detection; solid scintillation detectors; Ce; Ce concentrations; LGSO crystal; LSO; Lu_0.4Gd_1.6SiO₅:Ce crystal; LuGdSiO₅:Ce; absorption coefficient; annealing effect; decay constant; energy resolution; gamma ray; light output; medical applications; scintillation properties; Annealing; Biomedical equipment; Biomedical imaging; Costs; Crystals; Electromagnetic wave absorption; Energy resolution; Gamma ray detectors; Medical services; Physics;

fLanguage

English

Publisher

ieee

Conference_Titel

Nuclear Science Symposium Conference Record, 2004 IEEE

Conference_Location

Rome

ISSN

1082-3654

Print_ISBN

0-7803-8700-7

Electronic_ISBN

1082-3654

Type

conf

DOI

10.1109/NSSMIC.2004.1466255

Filename

1466255