Speaker
Description
Summary
Integration and low-power consumption of the read-out ASIC for the
International Linear Collider (ILC) 82-million-channel W-Si calorimeter must
reach an unprecedented level as it will be embedded inside the detector.
Uniformity and dynamic range performance has to reach the accuracy to
achieve calorimetric measurement. A first step towards this goal has been a
10,000-channel physics prototype of 18*18 cm which is currently in test beam
in CERN.
A new version of a full integrated read out chip (SKIROC) has been designed to
equip the technologic prototype to be built for 2009. Based on the running
physics prototype ASIC (FLC_PHY3), it embeds most of the required features
expected for the final detector.
The dynamic range has been improved from 500 to 2000 MIP. An auto-trigger
capability has been added allowing built-in zero suppress. The number of
channel has been doubled reaching 36 to fit smaller silicon pads and the low-
noise charge preamplifier now accepts both AC and DC coupled detectors. After
an exhaustive description, the measurement results of that new front-end chip
will be presented. The results on the technological R&D concurrently conducted
on the ultra-thin PCB hosting both the front-end electronic and the silicon
detectors will also be described.
