Speaker
Description
Compared with the current LHC CMS tracker, the new CMS tracker of the High-Luminosity LHC is undergoing significant enhancements, including the development of a new silicon detector system with improved radiation hardness, higher granularity, and extended coverage up to a pseudorapidity of |η|∼4. In addition, the outer tracker (OT) will be equipped with two types of pT modules (2S and PS) that will provide tracking information to the L1 trigger of the HL-LHC CMS detector, by rejecting signals from particles below a certain pT threshold. Hence, the pT modules must be assembled with a high quality control system and have to pass strict requirements. In this talk, I will present the overview of 2S module production, and representative problems and experience acquired during module assembly and performance test. Some new techniques that have been developed during the module production will also be discussed.