Speaker
Description
As part of the High Luminosity LHC (HL-LHC) upgrade, the CMS detector's outer tracker (OT) will undergo a complete replacement. In addition to coping with the well-known challenges of high radiation and temperature cycling, the upgraded Phase-II OT will introduce a significant added functionality – for the first time in a tracker, the OT is designed to filter data to the level-1 (L1) trigger to help manage the abundant data rates brought by increased luminosity. In order to accomplish this ambitious redesign, the OT will be composed of about 5,592 pixel-strip (PS) and 7,608 strip-strip (2S) sensor modules working in combination to detect and filter high pT “stubs” of interest to the trigger.
Production of these modules is now under way at several sites worldwide. Thus, the development of standardized assessment and grading procedures is crucial. This contribution details work done on POTATO (Phase-II Outer Tracker Analyzer of Test Outputs): a quality-assurance/quality-control software tool developed to aid the coordination of the Phase-II OT module production and evaluation process. In conjunction with standardized testing procedures such as the burn-in and KIT boxes, POTATO is used to analyze test output parameters and assign a letter grade to module components. Additionally, technicians can use POTATO to interact with a production database of all graded modules to efficiently monitor and evaluate the global module production effort.
