Design and performance evaluation of a high-resolution small animal positron tomograph

Author

Pavlopoulos, Sotirios ; Tzanakos, George

Author_Institution

Dept. of Biomed. Eng., Rutgers Univ., Piscataway, NJ, USA

Volume

43

Issue

6

fYear

1996

fDate

12/1/1996 12:00:00 AM

Firstpage

3249

Lastpage

3255

Abstract

The authors have used Monte Carlo simulation methods to design and evaluate a small animal positron tomograph. The tomograph has an inner diameter of 34.37 cm and a field of view of 20 cm (diameter) transaxially and 6 cm axially. The basic gamma-ray detector unit consists of a partially segmented EGO block made of 18×16 crystals of dimensions 3.35 mm×3.30 mm×30 mm, read out by a position sensitive photomultiplier tube with crossed anode wires. The design of the block was accomplished with the authors´ recently developed Monte Carlo simulation program for PET design, which also was used for the evaluation of the performance of the tomograph. The rate (trues, randoms, NEC) performance as well as the resolution have been studied and compared to those of other tomographs

Keywords

Monte Carlo methods; biological techniques; image resolution; positron emission tomography; 20 cm; 34.37 cm; 6 cm; PET design; animal studies; crossed anode wires; high-resolution small animal positron tomograph; nuclear biology; partially segmented EGO block; performance evaluation; position sensitive photomultiplier tube; randoms; trues; Animals; Anodes; Biomedical engineering; Crystals; Gamma ray detectors; Photomultipliers; Positron emission tomography; Sensor arrays; Spatial resolution; Wires;

fLanguage

English

Journal_Title

Nuclear Science, IEEE Transactions on

Publisher

ieee

ISSN

0018-9499

Type

jour

DOI

10.1109/23.552728

Filename

552728