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Proceedings Paper

A CMOS image sensor dedicated to medical gamma camera application
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Paper Abstract

Generally, medical Gamma Camera are based on the Anger principle. These cameras use a scintillator block coupled to a bulky array of photomultiplier tube (PMT). To simplify this, we designed a new integrated CMOS image sensor in order to replace bulky PMT photodetetors. We studied several photodiodes sensors including current mirror amplifiers. These photodiodes have been fabricated using a CMOS 0.6 micrometers process from Austria Mikro Systeme (AMS). Each sensor pixel in the array occupies respectively, 1mm x 1mm area, 0.5mm x 0.5mm area and 0.2mm 0.2mm area with fill factor 98 % and total chip area is 2 square millimeters. The sensor pixels show a logarithmic response in illumination and are capable of detecting very low green light emitting diode (less than 0.5 lux) . These results allow to use our sensor in new Gamma Camera solid-state concept.

Paper Details

Date Published: 17 March 2005
PDF: 12 pages
Proc. SPIE 5580, 26th International Congress on High-Speed Photography and Photonics, (17 March 2005); doi: 10.1117/12.577845
Show Author Affiliations
Nur S. Salahuddin, Lab. Le2i, CNRS, Univ. de Bourgogne (France)
Gundarma Univ. (Indonesia)
Michel Paindavoine, Lab. Le2i, CNRS, Univ. de Bourgogne (France)
Dominique Ginhac, Lab. Le2i, CNRS, Univ. de Bourgogne (France)
Michel Parmentier, Univ. de Franche Comte (France)
Najia Tamda, Univ. de Franche Comte (France)


Published in SPIE Proceedings Vol. 5580:
26th International Congress on High-Speed Photography and Photonics
Dennis L. Paisley; Stuart Kleinfelder; Donald R. Snyder; Brian J. Thompson, Editor(s)

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