Development of fast and high precision pixel sensors for a vertex detector suited to the ILC physics programme and running conditions

por Marc Winter (CNRS/IN2P3 - Univ. L.Pasteur (Strasbourg))

viernes 3 nov. 2006 11:30 → 12:30 Europe/Madrid

Sala Seminarios IFIC (Edf. Institutos de Investigación)

The ILC physics programme calls for very high flavour tagging capabilities, which exceed substantially those achieved with existing pixel devices (such as hybrid pixel sensors and charge-coupled-devices), which do not provide a suitable balance between granularity, material budget, radiation tolerance and read-out speed. CMOS sensors emerged in the late nineties in order to take up this challenge, as they seem to provide a more suitable trade-off of performance criteria. The talk will start by illustrating the role of flavour tagging at the ILC and describe some salient features of the vertex detector concepts under discussion. It will next introduce the CMOS sensor pixel technology and summarise the performances obtained at IPHC in terms of detection efficiency, single point resolution, radiation tolerance, read-out speed, power dissipation and material budget. The talk will finally provide an outlook on the next R&D steps of the CMOS sensors developed for the ILC and describe some of their mid-term applications presently under way.