Speaker
Description
This talk focuses on the current status of the design for a potential upgrade of the innermost layer of the CMS Inner Tracker (TBPX). Due to the high radiation levels expected, the innermost layer of the detector will need to be replaced midway through the High-Luminosity LHC (HL-LHC) program. This necessity creates an opportunity to develop and implement improved mechanical structures and electronic systems to enhance CMS performance during the second half of the HL-LHC era. Specifically, the talk will explore the concept and the main steps taken to adapt a geometry developed for the ALICE Inner Tracker to meet the CMS tracker’s constraints, including space availability, cooling system requirements, module power dissipation and material budget targets. Furthermore, the presentation will highlight the main challenges and potential solutions identified when applying the ALICE geometry to a CO₂-cooled detector like CMS. These aspects are still under investigation and testing: the talk will present the current proposed solutions to address them. The aim is also to open the floor for discussion and gather valuable feedback on the most promising technologies for the potential upgrade of the CMS Inner Tracker.