May 24 – 28, 2021
America/Vancouver timezone

Performance of radiation hard 3D pixel sensors for the upgrade of the ATLAS Inner Tracker

May 27, 2021, 9:48 AM
Parallel session talk Sensors: Solid-state position sensors Sensors: Solid-state sensors for tracking


Stefano Terzo (IFAE Barcelona (ES))


The inner detector of the ATLAS experiment will be replaced by a completely new Inner Tracker (ITk) to exploit the performance of the High Luminosity upgrade of the LHC accelerator (HL-LHC). The new detector will have to operate in an unprecedented radiation environment. In particular, the hybrid pixel detectors of the innermost layer of the ITk will be exposed to a particle fluence of about 2e16 $n_{eq}/cm^{2}$ before being replaced.
A novel 3D pixel sensor technology featuring thin active substrates and small pixel cells has been selected to instrument the innermost barrel layer and rings of the ATLAS ITk.
Prototypes of these 3D pixel sensors produced at CNM in Barcelona, Spain have been irradiated with protons and neutrons up to the radiation doses expected at HL-LHC. Results obtained from the characterisation of 3D pixelated test structures as well as half-size sensors coupled to the RD53A ASICS prototype for HL-LHC will be presented.

TIPP2020 abstract resubmission? No, this is an entirely new submission.

Primary authors

Stefano Terzo (IFAE Barcelona (ES)) Sebastian Grinstein (IFAE - Barcelona (ES)) Juan Ignacio Carlotto (The Barcelona Institute of Science and Technology (BIST) (ES)) Giulio Pellegrini (Centro Nacional de Microelectrónica (IMB-CNM-CSIC) (ES)) Dr David Quirion (IMB-CNM, CSIC) Maria Manna (Centro National de Microelectronica - CNM-IMB-CSIC)

Presentation materials