NEMA count-rate evaluation of the first and second generation of the Ecat Exact and Ecat Exact HR family of scanners

The first and second generation of the Exact and Exact HR family of scanners has been evaluated in terms of noise equivalent count rate (NEC) and count-rate capabilities. The new National Electrical Manufacturers Association standard was used for the evaluation. In spite of improved electronics and...

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Bibliographic Details
Published in:IEEE transactions on nuclear science 2002-06, Vol.49 (3), p.640-643
Main Authors: Eriksson, L., Wienhard, K., Eriksson, M., Casey, M.E., Knoess, C., Bruckbauer, T., Hamill, J., Mulnix, T., Vollmar, S., Bendriem, B., Heiss, W.D., Nutt, R.
Format: Article
Language:English
Subjects:
Cameras
Counting
Detectors
Electronics
Equivalence
High-resolution imaging
Manufacturing
Medicin och hälsovetenskap
National electric code
Noise
Noise generators
Positron emission tomography
Production systems
Scanners
Spatial resolution
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Summary:The first and second generation of the Exact and Exact HR family of scanners has been evaluated in terms of noise equivalent count rate (NEC) and count-rate capabilities. The new National Electrical Manufacturers Association standard was used for the evaluation. In spite of improved electronics and improved count-rate capabilities, the peak NEC was found to be fairly constant between the generations. The results are discussed in terms of the different electronic solutions for the two generations and its implications on system dead time and NEC count-rate capability.
ISSN:0018-9499
1558-1578
DOI:10.1109/TNS.2002.1039542