Aachen 2019 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 93: Detektorsysteme VI

T 93.4: Vortrag

Donnerstag, 28. März 2019, 16:45–17:00, H08

Beam Test measurements of silicon-strip modules for the ATLAS Inner Tracker upgrade — Carlos Garcia Argos, Mark Hauser, Ulrich Parzefall, •Arturo Rodriguez Rodriguez, Frederik Ruehr, Dennis Sperlich, and Liv Wiik — Albert-Ludwigs-Universität, Freiburg, Germany

For the high luminosity phase of the LHC, the tracking system of the ATLAS experiment will be replaced with a new all-silicon detector called the Inner Tracker (ITk), to cope with the expected severe conditions in terms of radiation and occupancy. With the production of modules scheduled to begin in 2020, a thorough understanding of the current prototype modules is critical. Beam Tests allow, to some extent, to simulate real experimental conditions and test the module performance. This talk presents the results of beam tests at DESY and CERN. The devices under test are the first ever double-sided R0 module built from non-irradiated silicon sensors and a single R0 module irradiated up to a dose of 1.1× 10¹⁵ n_eq/cm². The R0 module will occupy the innermost position in the end-cap wheels of the ITk-strip detector system and will face the highest radiation dose. The results presented focus on the detection efficiency and spatial resolution of the modules.