Wuppertal 2015 – wissenschaftliches Programm

Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe

T: Fachverband Teilchenphysik

T 82: Eingeladene Vorträge 4

T 82.5: Eingeladener Vortrag

Donnerstag, 12. März 2015, 15:45–16:15, K.11.24 (HS 33)

The upgraded ATLAS Pixel Detector for the LHC Run-2 — •Tayfun Ince for the ATLAS collaboration — Max-Planck-Institute for Physics, Munich, Germany

The ATLAS Pixel Detector has shown excellent performance during the LHC Run-1. Taking advantage of the long shutdown, the detector was extracted from the experiment and brought to surface in 2013, to equip it with new service quarter panels, to repair the non-operational modules and to ease installation of the Insertable B-Layer (IBL). The IBL is the new inner-most pixel layer installed in May 2014 at a radius of 3.3 cm between the existing Pixel Detector and a new smaller radius beam-pipe. To cope with the high radiation and pixel occupancy due to the proximity to the interaction point, a new read-out chip and two different silicon sensor technologies, planar and 3D, are developed. The physics performance will be improved through the reduction of pixel size. While targeting for a low material budget, a new mechanical support using light weight staves and CO2 based cooling system are adopted. An overview of the Pixel Detector refurbishment and the IBL project as well as the experience in its construction will be presented, focusing on adopted technologies, module and stave production, quality assurance procedure, integration of staves around the new beam pipe and commissioning of the detector.