Performance comparison of a current LSO PET scanner versus the same scanner with upgraded electronics

Author

Puterbaugh, K.C. ; Breeding, J.E. ; Musrock, M.S. ; Seaver, Chad ; Casey, M.E. ; Young, J.W.

Author_Institution

CPS Innovations, Knoxville, TN, USA

Volume

3

fYear

2003

fDate

19-25 Oct. 2003

Firstpage

1932

Abstract

Performance of an existing LSO PET scanner was compared to that of the same scanner with upgraded electronics. TDC step resolution decreased to 500 ps while background corrected system energy resolution increased to 18.89%. This allowed a lowering of the coincidence time window to 4.5 ns and an increase in the system LLD to 400 keV. Electronics dead time was reduced to 136 ns. Singles rates from each DEA were increased 100%. An almost 100% increase in NEC was achieved due to the increased electronics performance. The peak NEC was greater than 93,000.

Keywords

gamma-ray detection; image scanners; medical image processing; nuclear electronics; positron emission tomography; solid scintillation detectors; 136 ns; 4.5 ns; 400 keV; 500 ps; background corrected system energy resolution; current LSO PET scanner; detector electronics assembly; electronics dead time; time to digital step resolution; upgraded electronics; Analog-digital conversion; Application specific integrated circuits; Assembly systems; Computational fluid dynamics; Detectors; Energy resolution; Field programmable gate arrays; National electric code; Positron emission tomography; Read-write memory;

fLanguage

English

Publisher

ieee

Conference_Titel

Nuclear Science Symposium Conference Record, 2003 IEEE

ISSN

1082-3654

Print_ISBN

0-7803-8257-9

Type

conf

DOI

10.1109/NSSMIC.2003.1352257

Filename

1352257