Optimization of optical coupling conditions for LSO/LuYAP phoswich detector

Author

Jung, Jin Ho ; Choi, Yong ; Chung, Yong Hyun ; Devroede, Olivier ; Krieguer, Magalie ; Bruyndonckx, Peter ; Tavernier, Stefaan

Author_Institution

Dept. of Nucl. Med., Sung Kyun Kwan Univ., Seoul

Volume

5

fYear

2004

fDate

16-22 Oct. 2004

Firstpage

2970

Lastpage

2974

Abstract

Phoswich detectors consisting of LSO and LuYAP for small animal PET have been developed to measure the depth of interaction (DOI) and to improve spatial resolution. The aim of this study was to characterize the optical coupling condition between phoswich crystal and photomultiplier tube (PMT) and between LSO and LuYAP to improve the performance of LSO/LuYAP phoswich detector. Light yields and DOI measurement errors of the phoswich detector with various optical coupling conditions were investigated by simulation and experiment. Additionally, the effects of inserted materials between LSO and LuYAP crystals with various ratios of coverage and surface conditions on PET performance were investigated

Keywords

gamma-ray detection; optical couplers; photomultipliers; positron emission tomography; solid scintillation detectors; LSO; LuYAP; depth of interaction; optical coupling condition; phoswich detectors; photomultiplier tube; small animal PET; spatial resolution; surface conditions; Animals; Crystalline materials; Crystals; Measurement errors; Optical coupling; Optical detectors; Optical materials; Photomultipliers; Positron emission tomography; Spatial resolution;

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.2004.1466309

Filename

1466309