Speaker
Description
To meet the demands of increased instantaneous luminosity at the Large Hadron Collider (LHC), significant upgrades have been implemented on the ATLAS Liquid Argon (LAr) Calorimeters. This presentation will cover the performance of the upgraded trigger readout electronics, currently running, and the status of the readout electronics upgrade for the High-Luminosity LHC (HL-LHC), in preparation.
New trigger readout electronics have been installed during the last LHC long shutdown (LS2) to handle the increased data throughput. On the detector side, 124 new electronic boards digitize at high speed ten times more signals than the legacy system. Downstream, large FPGAs process up to 20 Tbps of data to compute deposited energies. Additionally, a new control and monitoring infrastructure has been developed. This contribution will detail the performance of the new system and the milestones achieved in phasing out the legacy analog trigger in favor of the new digital trigger for Run 3.
Looking into the future, the ATLAS LAr Calorimeter readout electronics are being upgraded to support the High-Luminosity LHC (HL-LHC). This includes the development of custom preamplifiers and shapers with low noise and excellent linearity, a new ADC chip with two gains, and new calibration boards with minimal non-linearity and uniformity issues across all calorimeter channels. New ATCA-compliant signal processing boards equipped with FPGAs and high-speed links receive detector data and perform energy and time reconstruction. A new timing and control system has also been designed to ensure seamless operation. Machine learning approaches, including convolutional and recurrent neural networks, are being explored to outperform the optimal signal filter currently used in energy resolution. The latest developments towards the full production of the upgrade components will be presented.
Details
N/A
| Internet talk | No |
|---|---|
| Is this an abstract from experimental collaboration? | Yes |
| Name of experiment and experimental site | ATLAS |
| Is the speaker for that presentation defined? | No |