In-plane resolution characteristics for a positron emission tomograph: Headtome IV

Author

Yamamoto, S. ; Iida, H. ; Amano, M. ; Miura, S. ; Hirose, Y. ; Kanno, I.

Author_Institution

Shimadzu Corp., Kyoto, Japan

Volume

36

Issue

1

fYear

1989

fDate

2/1/1989 12:00:00 AM

Firstpage

1003

Lastpage

1005

Abstract

Headtome IV is a PET (positron emission tomograph) which consists of 96 detector units per ring. Each detector unit consists of eight 3-mm-wide bismuth germanate (BGO) crystals, a pair of light guides, and a dual module photomultiplier tube and uses pulse-height-ratio logic to determine the crystal of interaction. In-plane resolution of 4.5 mm full width at half maximum (FWHM) was obtained without any sampling motion such as wobble. The authors investigated three in-plane resolution characteristics of the Headtome IV, i.e. resolution with distance from the center, variation of the in-plane resolution and the effect of gain imbalance

Keywords

biomedical equipment; computerised tomography; radioisotope scanning and imaging; BiGeO; Headtome IV; PET; dual module photomultiplier tube; light guides; positron emission tomograph; pulse-height-ratio logic; Blood vessels; Crystals; Detectors; Fluctuations; Image reconstruction; Image resolution; Motion detection; Positron emission tomography; Radioactive decay; Sampling methods;

fLanguage

English

Journal_Title

Nuclear Science, IEEE Transactions on

Publisher

ieee

ISSN

0018-9499

Type

jour

DOI

10.1109/23.34593

Filename

34593