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Seminars and Journal Clubs
Radiation Tolerant Sensors for Solid State Tracking Detectors
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Europe/Brussels
Description
The envisaged upgrade of the Large Hadron Collider (LHC) at CERN towards the Super-LHC (SLHC) with a 10 times increased luminosity of 10^35 cm^‑2 s^-1 will present severe challenges for the tracking detectors of the SLHC experiments. Unprecedented high radiation levels and track densities and a bunch crossing time in the order of 25 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 obtained by the RD50 collaboration and other working groups will be presented. Finally, an overview of the present understanding of the radiation induced microscopic processes leading to the deterioration of silicon detector properties, are presented and discussed.