Conférence extérieure: Université de Genève
Ecole de physique
Département de physique nucléaire et corspusculaire
1211 GENEVE 4
Tél: (022) 379 62 73
Fax: (022) 379 69 92
Wednesday 13 December 2006
PARTICLE PHYSICS SEMINAR
at 17.00 hrs - Stückelberg Auditorium
Radiation Tolerant Sensors for Solid State Tracking Detectors
by Dr Michael MOLL / CERN
The envisaged upgrade of the Large Hadron Collider (LHC) at CERN towards the Super-LHC (SLHC) with a 10 times increased luminosity of 1035 cm2 s-1 will present severe challenges for the tracking detectors of the SLHC experiments. Unprecedented high radiation levels and track densities and a reduced bunch crossing time in the order of 10 ns as well as the need for cost effective detectors have called for an intensive R&D program. The CERN RD50 collaboration 'Development of Radiation Hard Semiconductor Devices for Very High Luminosity Colliders' is working on the development of semiconductor sensors matching the requirements of the SLHC. Sensors based on defect engineered silicon like Czochralski, epitaxial and oxygen enriched silicon have been developed. With 3D, Semi-3D and thin detectors new detector concepts have been evaluated and a study on the use of standard and oxygen enriched p-type silicon detectors revealed a promising approach for radiation tolerant cost effective devices. These and other most recent advancements of the RD50 collaboration, as well as an overview of the present understanding of the radiation induced microscopic processes leading to the deterioration of silicon detector properties, are presented and discussed.
Information : http://dpnc.unige.ch/seminaire/annonce.html
Organizer : J.-S. Graulich