@article{3074364,
    title = "I-IMAS: A 1.5D sensor for high-resolution scanning",
    author = "Fant, A. and Gasiorek, P. and Turchetta, R. and Avset, B. and Bergamaschi, A. and Cavouras, D. and Evangelou, I. and French, M.J. and Galbiati, A. and Georgiou, H. and Hall, G. and Iles, G. and Jones, J. and Longo, R. and Manthos, N. and Metaxas, M.G. and Noy, M. and Ostby, J.M. and Psomadellis, F. and Royle, G.J. and Schulerud, H. and Speller, R.D. and van der Stelt, P.F. and Theodoridis, S. and Triantis, F. and Venanzi, C.",
    journal = "Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment",
    year = "2007",
    volume = "573",
    number = "1-2",
    pages = "27-29",
    doi = "10.1016/j.nima.2006.10.389",
    keywords = "CMOS integrated circuits;  Gain control;  Mammography;  Phosphors;  Radiography;  Scanning, Advanced pixel sensors;  Dental radiography;  Detector design;  Digital radiography, Sensors",
    abstract = "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 512×32 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. © 2006 Elsevier B.V. All rights reserved."
}