MEASUREMENTS OF THE ANAPIX PERFORMANCES - AN ANALOG READOUT CELL FOR HYBRID PIXEL DETECTORS

The work that has been performed since the beginning of 1993 in Milano in the INFN Group V experiment ASPIDE (Analogue Silicon PIxel DEtector) Italian partner (for the analogue readout development of hybrid pixel detectors) of the CERN RD19 collaboration is resumed. The aim of these experiments was to realize an analogue cell for the readout of hybrid pixel detectors. The Anapix cell has been successfully developed and tested, both alone and connected to a pixel detector. The main result is a noise of about 100 electrons r.m.s. on the cell alone, about 190 electrons r.m.s. with the cell connected via wire bonding to pixel detectors and a signal-noise ratio of about 120/1 for minimum ionising particles.