Speaker
Description
For the High Luminosity LHC (HL-LHC), the CMS is going to operate at up to 200 interactions per 25 $ns$ beam crossing and reaching up to 4000 $fb^{−1}$ of integrated luminosity. The CMS Tracker Phase-2 upgrade for the HL-LHC requires designing new Inner and Outer Tracker (OT) systems to cope with the increased luminosity, to ensure excellent tracking performance in the presence of a high level of pileup, and to implement the L1 trigger functionality (only for entire OT).
The upgraded OT system will consist of a barrel region and two endcaps made of double disks (TEDDs).TEDDs are built from large "dee" structures grouping more than 100 modules of two kinds: 2S modules built with two strip sensors and PS modules with strip and macro-pixel sensors. Theses are the largest and most complex substructures in the CMS tracker upgrade project, so the module integration process and the subsequent tests are critical steps to ensure detector performance, stability, and reliability.
This contribution will present the first experience of the step by step integration procedure, the test procedure, and performance results of silicon modules operated jointly on the structures. This will include observations on integration procedures and workflows, the tools and software developed for that purpose, the measurements made during integration, and noise measurements after integration in conditions close to the final detector environment.