Article ID Journal Published Year Pages File Type
1828451 Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 2008 4 Pages PDF
Abstract

Detectors based on semi-insulating (SI) GaAs show high detection efficiency and satisfactory energy resolution for modern X-ray digital imaging applications. This work deals with the performance of SI GaAs-based detectors coupled by wire bonding to the input of multichannel readout chip DX64 (technology CMOS 0.35 μm). Detectors have circular Ti/Pt/Au multilayer Schottky blocking contacts with different diameters (0.75, 0.50, 0.30 and 0.20 mm). First results of operation of the used readout system in the single-photon counting regime are given.

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Physical Sciences and Engineering Physics and Astronomy Instrumentation
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On the detection performance of semi-insulating GaAs detectors coupled to multichannel ASIC DX64 for X-ray imaging applications
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