Speaker
Description
The High Granularity timing detector (HGTD) is one of the ATLAS upgrades and is designed to provide a per-track timing information of tens of ps over the full detector lifetime. This information will contribute to pileup mitigation in the operations of the ATLAS detector at the High-Luminosity LHC. HGTD deploys low gain avalanche silicon detectors (LGADs) with a segmentation into a 15x15 matrix with 1.3x1.3 mm2 pads.
Sensors are bump-bonded to the ALTIROC readout ASIC, and two of such hybrids are attached to a single PCB to constitute an HGTD module.
The HGTD will be instrumented with more than 8000 modules and this talk will discuss the requirements and the methods used for the assembly of modules and the procedures deployed to verify their quality and test their functionality. Finally, the recent results achieved on the module performance will be presented.
