SPICE simulations of AC-coupled single-sided Si microstrip detectors connected to the Pre-Shape 32 read-out chip have been performed in order to determine the geometrical characteristics (i.e. the strip pitch p and width w) which maximize the signal-to-noise ratio at room temperature. All the resistive and capacitive elements of the detector have been determined as a function of the w/p ratio, by considering experimental and simulated data available in the literature. The SPICE model takes into account all the main noise sources in the detector and read-out electronics. The minimum ionizing particle current signal shape characteristics have been introduced in the simulations. Two read-out configurations (every strip or every second strip) have been investigated for 6.4 cm and 12.8 cm long detectors. Finally, general guidelines in the detector design have been proposed starting from the simulation results.
SPICE evaluation of the S/N ratio for Si microstrip detectors
CANDELORI, ANDREA;PACCAGNELLA, ALESSANDRO;BISELLO, DARIO
1999
Abstract
SPICE simulations of AC-coupled single-sided Si microstrip detectors connected to the Pre-Shape 32 read-out chip have been performed in order to determine the geometrical characteristics (i.e. the strip pitch p and width w) which maximize the signal-to-noise ratio at room temperature. All the resistive and capacitive elements of the detector have been determined as a function of the w/p ratio, by considering experimental and simulated data available in the literature. The SPICE model takes into account all the main noise sources in the detector and read-out electronics. The minimum ionizing particle current signal shape characteristics have been introduced in the simulations. Two read-out configurations (every strip or every second strip) have been investigated for 6.4 cm and 12.8 cm long detectors. Finally, general guidelines in the detector design have been proposed starting from the simulation results.Pubblicazioni consigliate
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