Evaluation of the imaging properties of a direct detection single photon counting based system

Amendolia, Salvator Roberto and Bisogni, Maria Giuseppina and Bottigli, Ubaldo and Ceccopieri, A. and Delogu, Pasquale and Dipasquale, Giovanna and Fantacci, Maria Evelina and Marchi, Alex and Marzulli, Vincenzo M. and Oliva, Piernicola and Palmiero, Rosa and Rosso, Valeria and Stefanini, Arnaldo and Stumbo, Simone (2001) Evaluation of the imaging properties of a direct detection single photon counting based system. Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 461 (1-3), p. 389-392. ISSN 0168-9002. Article.

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DOI: 10.1016/S0168-9002(00)01257-2

Abstract

We have tested the imaging properties of a system based on a GaAs matrix that performs the direct detection of photons in the range of radiographic interest. The detector is bump-bonded to a VLSI single photon counting electronics. The imaging properties of the system have been evaluated in terms of the presampling MTF and the DQE(ν), that allow an absolute characterization of imaging properties of digital systems. We have tested other radiographic imaging systems in standard clinical conditions, using the same functions and we have compared them with the GaAs matrix system.

Item Type:	Article
ID Code:	4507
Status:	Published
Refereed:	Yes
Uncontrolled Keywords:	MTF, DQE, X-ray imaging, single photon counting
Subjects:	Area 02 - Scienze fisiche > FIS/07 Fisica applicata (a beni culturali, ambientali, biologia e medicina)
Divisions:	001 Università di Sassari > 03 Istituti > Matematica e fisica
Publisher:	North Holland / Elsevier
ISSN:	0168-9002
Deposited On:	07 Sep 2010 16:13

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