An analog CMOS-Integrated Circuit has been developed as Front-End for a double-sided microstrip silicon detector. The IC processes and discriminates signals in the 5-30 keV energy range. Main features are low noise and precise timing information. Low noise is achieved by optimizing the cascoded integrator with the 8 pF detector capacitance and by using an inherently low noise 1.2 mu m CMOS technology. Timing information is provided by a double discriminator architecture. The output of the circuit is a digital pulse. The leading edge is determined by a tired threshold discriminator, while the trailing edge is provided by a zero crossing discriminator. In this paper we first describe the architecture of the Front-End chip. We then present the performance of the chip prototype in terms of noise, minimum discrimination threshold and time resolution. (C) 1999 Elsevier Science B.V. All rights reserved.
|Autori:||Beccherle R; Cisternino A; Del Guerra A; Folli M; Marchesini R; Bisogni M; Ceccopieri A; Rosso V; Stefanini A; Tripiccione R; Kipnis I|
|Titolo:||A VLSI front-end circuit for microstrip silicon detectors for medical imaging applications|
|Anno del prodotto:||1999|
|Digital Object Identifier (DOI):||10.1016/S0168-9002(99)00545-8|
|Appare nelle tipologie:||1.1 Articolo in rivista|