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Proceedings Paper

Selective photon counter for digital x-ray mammography tomosynthesis
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Paper Abstract

Photon counting is an emerging detection technique that is promising for mammography tomosynthesis imagers. In photon counting systems, the value of each image pixel is equal to the number of photons that interact with the detector. In this research, we introduce the design and implementation of a low noise, novel selective photon counting pixel for digital mammography tomosynthesis in crystalline silicon CMOS (complementary metal oxide semiconductor) 0.18 micron technology. The design comprises of a low noise charge amplifier (CA), two low offset voltage comparators, a decision-making unit (DMU), a mode selector, and a pseudo-random counter. Theoretical calculations and simulation results of linearity, gain, and noise of the photon counting pixel are presented.

Paper Details

Date Published: 6 March 2006
PDF: 9 pages
Proc. SPIE 6142, Medical Imaging 2006: Physics of Medical Imaging, 61425B (6 March 2006); doi: 10.1117/12.653764
Show Author Affiliations
Amir H. Goldan, Simon Fraser Univ. (Canada)
Karim S. Karim, Simon Fraser Univ. (Canada)
J. A. Rowlands, Sunnybrook and Women's College Health Sciences Ctr., Univ. of Toronto (Canada)


Published in SPIE Proceedings Vol. 6142:
Medical Imaging 2006: Physics of Medical Imaging
Michael J. Flynn; Jiang Hsieh, Editor(s)

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