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A CMOS APS for dental X-ray imaging using scintillating sensors
Mittuniversitetet, Fakulteten för naturvetenskap, teknik och medier, Institutionen för informationsteknologi och medier.
Mittuniversitetet, Fakulteten för naturvetenskap, teknik och medier, Institutionen för informationsteknologi och medier. (christer.frojdh@miun.se)ORCID-id: 0000-0002-8325-5177
Mittuniversitetet, Fakulteten för naturvetenskap, teknik och medier, Institutionen för informationsteknologi och medier.
2001 (engelsk)Inngår i: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, ISSN 0168-9002, E-ISSN 1872-9576, Vol. 460, nr 1, s. 197-203Artikkel i tidsskrift (Fagfellevurdert) 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.

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2001. Vol. 460, nr 1, s. 197-203
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URN: urn:nbn:se:miun:diva-8274DOI: 10.1016/S0168-9002(00)01114-1ISI: 000167597000028Scopus ID: 0342592353OAI: oai:DiVA.org:miun-8274DiVA, id: diva2:133915
Merknad
1st International Workshop on Radiation Imaging Detectors, Jun 13-17, 1999, Sundsvall, SwedenTilgjengelig fra: 2009-01-15 Laget: 2009-01-15 Sist oppdatert: 2017-12-14bibliografisk kontrollert

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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

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