A High-Rate Energy-Resolving Photon-Counting ASIC for Spectral Computed Tomography

被引：34

作者：

Gustavsson, Mikael ^{[1
]}

Ul Amin, Farooq ^{[2
]}

Bjorklid, Anders ^{[1
]}

Ehliar, Andreas ^{[2
]}

Xu, Cheng ^{[3
]}

Svensson, Christer ^{[2
]}

机构：

[1] SP Devices AB, S-58330 Linkoping, Sweden

[2] Linkoping Univ, Dept Elect Engn, S-58183 Linkoping, Sweden

[3] Royal Inst Technol, Dept Phys, S-10044 Stockholm, Sweden

来源：

IEEE TRANSACTIONS ON NUCLEAR SCIENCE | 2012年 / 59卷 / 01期

关键词：

CMOS; photon counting; spectral computed tomography; x-ray detection; PIXEL READOUT CHIP; DETECTOR; PERFORMANCE;

D O I：

10.1109/TNS.2011.2169811

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We describe a high-rate energy-resolving photon-counting ASIC aimed for spectral computed tomography. The chip has 160 channels and 8 energy bins per channel. It demonstrates a noise level of ENC= electrons at 5 pF input load at a power consumption of <5mW/channel. Maximum count rate is 17 Mcps at a peak time of 40 ns, made possible through a new filter reset scheme, and maximum read-out frame rate is 37 kframe/s.

引用

页码：30 / 39

页数：10

共 27 条

[1] ENERGY-SELECTIVE RECONSTRUCTIONS IN X-RAY COMPUTERIZED TOMOGRAPHY [J].