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

Autor: T. Mulnix, Stefan Vollmar, Michael E. Casey, B. Bendriem, J. Hamill, W.-D. Heiss, C. Knoess, R. Nutt, Lars Eriksson, Klaus Wienhard, M. Eriksson, T. Bruckbauer
Rok vydání: 2002
Předmět:
Zdroj: IEEE Transactions on Nuclear Science. 49:640-643
ISSN: 1558-1578
0018-9499
DOI: 10.1109/tns.2002.1039542
Popis: 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.
Databáze: OpenAIRE