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A CMOS APS for dental X-ray imaging using scintillating sensors
Mid Sweden University, Faculty of Science, Technology and Media, Department of Information Technology and Media.
Mid Sweden University, Faculty of Science, Technology and Media, Department of Information Technology and Media. (christer.frojdh@miun.se)ORCID iD: 0000-0002-8325-5177
Mid Sweden University, Faculty of Science, Technology and Media, Department of Information Technology and Media.
2001 (English)In: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, ISSN 0168-9002, Vol. 460, no 1, 197-203 p.Article in journal (Refereed) Published
Abstract [en]

In this paper we present an integrating CMOS Active Pixel Sensor (APS) circuit to be used with scintillator type X-ray sensors for intra oral dental X-ray imaging systems. Different pixel architectures were constructed to explore their performance characteristics and to study the feasibility of the development of such systems using the CMOS technology. A prototype 64×80 pixel array has been implemented in a CMOS 0.8 μm double poly n-well process with a pixel pitch of 50 μm. A spectral sensitivity measurement for the different pixels topologies, as well as measured X-ray direct absorption in the different APSs are presented. A measurement of the output signal showed a good linearity over a wide dynamic range. This chip showed that the very low sensitivity of the CMOS APSs to direct X-ray exposure adds a great advantage to the various CMOS advantages over CCD-based imaging systems.

Place, publisher, year, edition, pages
2001. Vol. 460, no 1, 197-203 p.
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:miun:diva-8274DOI: 10.1016/S0168-9002(00)01114-1ISI: 000167597000028Scopus ID: 0342592353OAI: oai:DiVA.org:miun-8274DiVA: diva2:133915
Note
1st International Workshop on Radiation Imaging Detectors, Jun 13-17, 1999, Sundsvall, SwedenAvailable from: 2009-01-15 Created: 2009-01-15 Last updated: 2011-07-26Bibliographically approved

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Abdalla, Munir AFröjdh, ChristerPetersson, Sture
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Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Electrical Engineering, Electronic Engineering, Information Engineering

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