PoS - Proceedings of Science
Volume 448 - The 32nd International Workshop on Vertex Detectors (VERTEX2023) - Posters Session
Qualification of irradiated 3D pixel sensors produced by Sintef for the pre-production of the ATLAS ITk detector
S. Hellesund*, O. Bergsagel, G. Calderini, T.I. Carcone, J.I. Carlotto, P.M. Chabrillat, O. Dorholt, C. Gemme, T. Heim, S. Hassan, S.K. Huiberts, L. Meng, M. Mironova, T. Poulianitis, S. Ravera, A.L. Read, M. Ressegotti, A. Rummler, O. Rohne, H. Sandaker, A. Skaf and B. Stugu
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This contribution presents test beam results of SINTEF 3D pixel sensors designed for the Inner Tracker (ITk) of the ATLAS detector at the High Luminosity LHC (HL-LHC). The sensors are required to withstand extreme radiation doses and to maintain efficiency above 96-97% after a lifetime operation at the ITk. We present details on the production and design of these sensors, the setup for the experiment at CERN, and the analysis of the test beam data. Results are promising, showing excellent position resolution and high efficiency after irradiation. The sensors meet the operational efficiency targets for both perpendicular and tilted configurations, validating their design and performance for future HL-LHC operations.
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