Speaker
Anna Macchiolo
(Max-Planck-Institut fuer Physik (Werner-Heisenberg-Institut) (D)
Description
To investigate the suitability of pixel sensors using the proven planar technology for the upgraded tracker, the ATLAS Planar Pixel Sensor R&D Project was established comprising 18 institutes and more than 80 scientists. Main areas of research are
• performance assessment of planar pixel sensors at HL-LHC fluences to drive design and process improvements.
• establishment of reliable device simulations for severely radiation-damaged pixel detectors
• the exploration of possibilities for cost reduction to enable the instrumentation of large areas with pixel detectors
The presentation will give an overview of the most recent achievements of the R&D project, among them
• beam test results with planar sensors irradiated up to HL-LHC fluences at different eta angles providing new insight into efficiencies and cluster sizes under realistic b-layer conditions
• comparisons of these experimental findings with initial TCAD device simulations
• update on prototyping efforts for large areas: sensor design improvements, 6” wafer production yields, characterisations and rad-hardness confirmations
• Possible designs for planar pixel sensors compatible with the new read-out chip in 65 nm CMOS technology.
On the base of these results, a discussion on the possible ways implementing planar pixel sensors in the different layers of the new ATLAS pixel system will be given.
Authors
Anna Macchiolo
(Max-Planck-Institut fuer Physik (Werner-Heisenberg-Institut) (D)
Daniel Muenstermann
(Universite de Geneve (CH))
