I-IMAS: A 1.5D sensor for high-resolution scanning (Journal article)

Fant, A./ Gasiorek, P./ Turchetta, R./ Avset, B./ Bergamaschi, A./ Cavouras, D./ Evangelou, I./ French, M. J./ Galbiati, A./ Georgiou, H./ Hall, G./ Iles, G./ Jones, J./ Longo, R./ Manthos, N./ Metaxas, M. G./ Noy, M./ Ostby, J. M./ Psomadellis, F./ Royle, G. J./ Schulerud, H./ Speller, R. D./ van der Stelt, P. F./ Theodoridis, S./ Triantis, F./ Venanzi, C.

We have developed a 1.5 D CMOS active pixel sensor to be used in conjunction with a scintillator for X-ray imaging. Within the Intelligent Imaging Sensors (I-ImaS) project, multiple sensors will be aligned to form a line-scanning system and its performance evaluated with respect to existing sensors in other digital radiography systems. Each sensor contains a 512 x 32 array of pixels and the electronics to convert the collected amount of charge to a digital output value. These include programmable gain amplifiers (PGAs) and analogue-to-digital converters (ADCs). The gain of the PGA can be switched between one or two, to increase the sensitivity for smaller collected charge; the ADC is a 14-bit successive approximation with a sampling rate of 1.25 MHz. The ASIC includes a programmable column fixed pattern noise mitigation circuit and a digitally controllable pixel reset mode block. Here we will describe the sensor design and the expected performance. (c) 2006 Elsevier B.V. All rights reserved.
Institution and School/Department of submitter: Πανεπιστήμιο Ιωαννίνων. Σχολή Επιστημών και Τεχνολογιών. Τμήμα Βιολογικών Εφαρμογών και Τεχνολογιών
URI: http://olympias.lib.uoi.gr/jspui/handle/123456789/16001
ISSN: 0168-9002
Link: <Go to ISI>://WOS:000245624200009
Appears in Collections:Άρθρα σε επιστημονικά περιοδικά ( Ανοικτά)

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