Bertuccio, G. ; Canali, C. ; Cetronio, A. ; De Geronimo, G. ; Giannini, F. ; Graffitti, R. ; Lanzieri, C. ; Longoni, A. ; Nava, F. ; Orengo, G. ; Padovini, G. ; Peroni, M.
(1997)
GaAs pixel detectors with integrated electronics: experimental basis and feasibility study.
In: Gallium Arsenide Applications Symposium. GAAS 1997, 3-5 September 1997, Bologna, Italy.
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Abstract
This work aims to study the feasibility of the integration, on the same chip, of GaAs pixel detectors and front-end electronics employing GaAs MESFETs or HEMTs. Interest of a full GaAs integrated systems are in X and y-ray spectroscopy and imaging for scientific, industrial and medical applications. The current status and recent experimental results regarding radiation detectors on semi-insulating GaAs are presented. Measurements of the relevant parameters of GaAs FETs suitable for the stringent requirements of a spectroscopy-graded front-end amplifier are analysed. Some still open problems regarding the detector-electronics integration are highlighted.
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