QA/QC testing has started for the frontend boards of the ATLAS experiment on July 22nd.

The ATLAS experiment plans to upgrade its trigger and readout systems in 2026 - 2028 with the goal of acquiring approximately 20 times more data over the following decade. Nagoya University, in collaboration with other institutions in the ATLAS Japan group, is involved in developing the frontend boards for data collection using the Muon Detector (TGC). The operational feasibility was demonstrated through the development and validation of prototypes and initial mass production units. Full-scale production of 1,540 units began this year. In this phase, the performance of the mass-produced boards is being evaluated using a self-developed QA/QC testing system at KEK.

The QA/QC testing system functioned without any significant issues, and 340 boards have already been tested. The details of the testing system and its results were reported at the JPS Annual Meeting in September 2024. The presentation slides, in Japanese, can be found at this link . All tests for the 1,540 units are expected to be completed by March 2025, after which the boards will be transported to CERN.

The QA/QC testing setup for the frontend board.	Graduate students lecturing on the test procedures.	Graduate students performing the QA/QC testing after lectures.
Graduate students and staffs participating in the QA/QC testing at KEK. (Nagoya University, University of Tokyo, KEK, SOKENDAI and Kobe University)