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A High-Rate Energy-Resolving Photon-Counting ASIC for Spectral Computed Tomography
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2012 (English)In: IEEE Transactions on Nuclear Science, ISSN 0018-9499, E-ISSN 1558-1578, Vol. 59, no 1, 30-39 p.Article in journal (Refereed) Published
Abstract [en]

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.

Place, publisher, year, edition, pages
2012. Vol. 59, no 1, 30-39 p.
Keyword [en]
CMOS, photon counting, spectral computed tomography, x-ray detection
National Category
Engineering and Technology
URN: urn:nbn:se:kth:diva-91261DOI: 10.1109/TNS.2011.2169811ISI: 000300422500005ScopusID: 2-s2.0-84857355996OAI: diva2:509098
QC 20120312Available from: 2012-03-12 Created: 2012-03-12 Last updated: 2012-03-12Bibliographically approved

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Xu, Cheng
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Medical Imaging
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