Physics – Instrumentation and Detectors
Scientific paper
2004-11-19
Physics
Instrumentation and Detectors
8 pages, 11 figures, IEEE NSS-MIC conference in Rome 2004, submitted to IEEE TNS, correction in unit of figure 8
Scientific paper
10.1109/TNS.2005.856750
Joint progresses in Cd(Zn)Te detectors, microelectronics and interconnection technologies open the way for a new generation of instruments for physics and astrophysics applications in the energy range from 1 to 1000 keV. Even working between -20 and 20 degrees Celsius, these instruments will offer high spatial resolution (pixel size ranging from 300 x 300 square micrometers to few square millimeters), high spectral response and high detection efficiency. To reach these goals, reliable, highly integrated, low noise and low power consumption electronics is mandatory. Our group is currently developing a new ASIC detector front-end named IDeF-X, for modular spectro-imaging system based on the use of Cd(Zn)Te detectors. We present here the first version of IDeF-X which consists in a set of ten low noise charge sensitive preamplifiers (CSA). It has been processed with the standard AMS 0.35 micrometer CMOS technology. The CSA are designed to be DC coupled to detectors having a low dark current at room temperature. The various preamps implemented are optimized for detector capacitances ranging from 0.5 up to 30 pF.
Chipaux Remi
Delagnes E.
Dirks Beate
Gevin O.
Horeau Benoit
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