ATLAS ITk Pixel Pre-production Planar Sensor Characterisation for the HL-LHC Upgrade
Y. Tian*, G. Calderini, I. Camp, T.I. Carcone, P.M. Chabrillat, A. Cordeiro Oudot Choi, F. Crescioli, J. Große-Knetter, S. Hadzic, S. Iizaka, C. Krause, L. Meng, K. Nakamura, A. Quadt, S. Terzo, A.S. Torrento Coello and H. Ye
*: corresponding author
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Pre-published on: March 13, 2023
Published on: May 08, 2023
Abstract
In the ATLAS detector upgrade for the High-Luminosity LHC (HL-LHC), the current Inner Detector will be replaced with an all-silicon Inner Tracker (ITk), to operate under higher occupancy (instantaneous luminosity $7.5\times10^{34}\;\rm cm^{-2}s^{-1}$, which corresponds to about 200 inelastic pp collisions per bunch crossing)
and radiation damage (particle fluence up to $2\times10^{16}\;\rm n_{eq}/cm^2$).
The data taking is planned to start in 2029 and last for 10$\,$years. The innermost part of the ITk will be equipped with pixel modules, consisting of pixel sensors and novel ASICs, implemented in 65$\,$nm CMOS technology.
The ITk project is currently in pre-production stage.
To assure that specifications will be met during production, sensors and test structures from different vendors were sent to different sites for irradiation, hybridisation and follow-up testing. This paper presents the results of the characterisation of the pre-production planar sensor for ITk.
DOI: https://doi.org/10.22323/1.420.0067
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