Performance of a small animal PET scanner based on photosensitive wire chambers

Author

Bruyndonckx, Peter ; Xuan, Liu ; Tavernier, Stefaan ; Shuping, Zhang

Author_Institution

Inter-Univ. Inst. for High Energies, Brussels, Belgium

Volume

2

fYear

1996

fDate

2-9 Nov 1996

Firstpage

1335

Abstract

A 3D small animal PET scanner, designed and built at the University of Brussels, has been operational since the beginning of 1996. The scanner has a transaxial field of view (FOV) of 110 mm and an axial FOV of 51 mm. The absolute sensitivity is around 35.000 coincidences/s/MBq for a point source at the center of the scanner and the time resolution is 29 ns FWHM. To measure the achievable spatial resolution, a thin ²²Na source was scanned at various distances from the scanner axis. The resolution in a reconstructed image for a source close to the center is 3.0 mm FWHM. Finally, to assess the overall image quality, scans were made of a cylindrical phantom with holes of varying diameter

Keywords

positron emission tomography; absolute sensitivity; achievable spatial resolution; axial FOV; cylindrical phantom; image quality; photosensitive wire chambers; point source; scanner; small animal PET scanner; thin ²²Na source; time resolution; transaxial field of view; Animals; Data acquisition; Graphical user interfaces; Image reconstruction; Image resolution; Photonic crystals; Positron emission tomography; Solid scintillation detectors; Spatial resolution; Wire;

fLanguage

English

Publisher

ieee

Conference_Titel

Nuclear Science Symposium, 1996. Conference Record., 1996 IEEE

Conference_Location

Anaheim, CA

ISSN

1082-3654

Print_ISBN

0-7803-3534-1

Type

conf

DOI

10.1109/NSSMIC.1996.591691

Filename

591691