PETRRA: preliminary experimental results from the first full size detector and dead time simulation of the count rate performance of a unique whole body PET camera

Author

Visvikis, D. ; Wells, K. ; Ott, R.J. ; Stephenson, R. ; Bateman, J.E. ; Connolly, J. ; Tappern, G.

Author_Institution

Inst. of Cancer Res., R. Marsden Hospital, Sutton, UK

Volume

42

Issue

4

fYear

1995

fDate

8/1/1995 12:00:00 AM

Firstpage

1030

Lastpage

1037

Abstract

The design and construction of the first of two BaF₂-TMAE large area detectors to be incorporated in a unique double headed whole body PET system (PETRRA) has been completed. Preliminary experimental work carried out with the first large area detector shows an absolute detection efficiency of 20.5% and a time resolution of 3.5 ns (FWHM) and 8.0 ns (FWTM), using 8 mm thick scintillation crystals. An analytical model of the electronic read-out system has been developed to investigate the rate capability of the new scanner. This model predicts that under typical imaging conditions, with 40 MBq of activity in the field of view, the proposed scanner will acquire coincidence data at 20-25 kcps

Keywords

barium compounds; coincidence techniques; positron emission tomography; solid scintillation detectors; 40 MBq; BaF₂; BaF₂-TMAE large area detectors; PETRRA; absolute detection efficiency; analytical model; coincidence data; count rate performance; dead time simulation; double headed whole body PET system; electronic read-out system; full size detector; imaging conditions; rate capability; scintillation crystals; time resolution; whole body PET camera; Cameras; Cancer; Crystals; Hospitals; Laboratories; Oncology; Positron emission tomography; Prototypes; Solid scintillation detectors; Whole-body PET;

fLanguage

English

Journal_Title

Nuclear Science, IEEE Transactions on

Publisher

ieee

ISSN

0018-9499

Type

jour

DOI

10.1109/23.467753

Filename

467753