Selective photon counter for digital x-ray mammography tomosynthesis - art. no. 61425B

被引：0

作者：

Goldan, Amir H. ^{[1
]}

Karim, Karim S. ^{[1
]}

Rowlands, J. A. ^{[1
]}

机构：

[1] Simon Fraser Univ, Burnaby, BC V5A 1S6, Canada

来源：

Medical Imaging 2006: Physics of Medical Imaging, Pts 1-3 | 2006年 / 6142卷

关键词：

digital mammography; tomosynthesis; selective photon counter; pixel input-stage noise; complementary; folded cascode op amp; low noise; wide dynamic range; crystalline silicon technology;

D O I：

10.1117/12.653764

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

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 (I)MU), 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.

引用

页码：B1425 / B1425

页数：9

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