Photon Counting Detectors for X-Ray Imaging With Emphasis on CT

被引：66

作者：

Ballabriga, R. ^{[1
]}

Alozy, J. ^{[1
]}

Bandi, F. N. ^{[2
]}

Campbell, M. ^{[1
]}

Egidos, N. ^{[1
]}

Fernandez-Tenllado, J. M. ^{[1
]}

Heijne, E. H. M. ^{[3
]}

Kremastiotis, I. ^{[1
]}

Llopart, X. ^{[1
]}

Madsen, B. J. ^{[1
]}

Pennicard, D. ^{[4
]}

Sriskaran, V. ^{[1
]}

Tlustos, L. ^{[1
]}

机构：

[1] CERN, Expt Phys Dept, CH-1211 Meyrin, Switzerland

[2] CNM IMSE, Parque Cientif Tecnol Cartuja, Seville 41092, Spain

[3] CERN, Expt Phys Dept, CH-1211 Meyrin, Switzerland

[4] DESY, Photon Sci Detectors Grp, D-22607 Hamburg, Germany

来源：

IEEE TRANSACTIONS ON RADIATION AND PLASMA MEDICAL SCIENCES | 2021年 / 5卷 / 04期

关键词：

Application specific integrated circuits (ASICs); hybrid pixel detector; sensors; RMS OFFSET SPREAD; PIXEL READOUT CHIP; MU-M PITCH; E(-) RMS; PULSE PILEUP; ENERGY; PERFORMANCE; CDTE; ENC;

D O I：

10.1109/TRPMS.2020.3002949

中图分类号：

R8 [特种医学]; R445 [影像诊断学];

学科分类号：

1002 ; 100207 ; 1009 ;

摘要：

X-ray imaging is a widely used imaging modality in the medical diagnostic field due to its availability, low cost, high spatial resolution, and fast image acquisition. X-ray photons in standard X-ray sources are polychromatic. Detectors that allow to extract the "color" information of the individual X-rays can lead to contrast enhancement, improved material identification or reduction of beam hardening artifacts at the system level, if we compare them with the widely spread energy integrating detectors. Today, in the field of computed tomography (CT), prototypes of clinical grade systems based on spectral photon counting detectors are currently available for clinical research from different companies. One of the key system components in that development is the X-ray photon detector. This article reviews the photon detection hardware, from the conversion of X-rays into electrical signals to the pulse processing electronics. A review of available photon counting application specific integrated circuits (ASICs) for spectroscopic X-ray imaging is presented with emphasis on the CT medical imaging application.

引用

页码：422 / 440

页数：19

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