Speaker
Description
Monolithic Active Pixel Sensors (MAPS) have become a cornerstone technology for precision tracking in heavy-ion and nuclear physics experiments. This poster presents an overview of the ITS3 upgrade for ALICE, featuring the world’s first wafer-scale, ultra-thin, and bent MAPS. The stitching process used to produce large-area sensors is introduced, along with the concept of the Monolithic Stitched Sensor (MOSS), which is composed of multiple Repeated Sensor Units (RSUs). The poster also includes results from sensor characterization, such as detection efficiency and fake hit rate versus threshold, as well as material budget measurements, demonstrating sensitivity down to 15 µm aluminum equivalent. Finally, an outlook is given on ALICE 3, where GSI is already actively contributing to the development of the next generation of MAPS-based tracking detectors.
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