SMuK 2023 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 20: Pixel ITk, Si-Strips/Other

T 20.1: Vortrag

Montag, 20. März 2023, 16:30–16:45, REC/C213

ITk-Pixel Pre-production Sensor QA Measurements Including Testbeam — Jörn Große-Knetter, Arnulf Quadt, •Yusong Tian, and Hua Ye — II. Physikalisches Institut, Georg-August-Universität Göttingen

In the ATLAS detector upgrade for the High-Luminosity LHC (HL-LHC), the current Inner Detector will be upgraded to an all-silicon Inner Tracker (ITk), to operate under higher occupancy (instantaneous luminosity 7.5 × 10³⁴ cm⁻² s⁻¹, corresponding to approximately 200 inelastic pp collisions per bunch crossing) and radiation damage (fluence 2×10¹⁶ n_eq/cm²). The data taking is planned to start in 2029 and last for 10 years. The pixel detector is the inner-most layer of the ITk, it consists of modules equipped with planar or 3D sensors, and is currently in the pre-production stage. To be assured that specifications will be met during production, sensors from different vendors were sent to different ITk sites for testing, and some modules were assembled for beam test. This talk shows ITkPix pre-production planar sensor quality assurance (QA) measurements and testbeam.