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Evaluation of an ultra fast photon-counting energy-resolved ASIC for spectral CT
Royal institute of technology, AlbaNova University Center.
Royal institute of technology, AlbaNova University Center.
Royal institute of technology, AlbaNova University Center.
Royal institute of technology, AlbaNova University Center.
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2012 (English)In: Medical Imaging 2012: Physics of Medical Imaging / [ed] Norbert J. Pelc, Robert M. Nishikawa, Bruce R. Whiting, S P I E - International Society for Optical Engineering , 2012, 83130Y-1-83130Y-6 p.Conference paper, Published paper (Other academic)
Abstract [en]

We have developed an ultra-fast photon-counting energy-resolved application specific integrated circuit (ASIC) for spectral computed tomography (CT). A comprehensive characterization has been carried out to investigate the performance of the ASIC in terms of energy resolution under different photon flux rates and the count rate linearity in photon-counting mode. An energy resolution of 4.7 % has been achieved for 59.5 keV low flux photons. The count rate performance of the ASIC was measured with 120 kVp polychromatic x-rays. The results indicate that the count rate linearity can be kept for a flux rate up to 150 Mphotons s<sup>-1</sup> mm<sup>-2</sup> with retained energy information, and this value is increased to be 250 Mphotons s<sup>-1</sup> mm<sup>-2</sup> in photon-counting mode

Place, publisher, year, edition, pages
S P I E - International Society for Optical Engineering , 2012. 83130Y-1-83130Y-6 p.
Series
Proceedings of SPIE, ISSN 0277-786X (Print), 1996-756X (online) ; Volume 8313
Keyword [en]
photon counting; spectral CT; silicon strip detector; ASIC
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:liu:diva-86531DOI: 10.1117/12.911111ISI: 000304768000031ISBN: 978-081948962-3 (print)OAI: oai:DiVA.org:liu-86531DiVA: diva2:578516
Conference
Conference on Medical Imaging - Physics of Medical Imaging, 4-9 February 2012, San Diego, California, USA
Available from: 2012-12-18 Created: 2012-12-18 Last updated: 2016-12-12

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Svensson, Christer

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CiteExportLink to record
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Citation style
  • apa
  • harvard1
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  • de-DE
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