Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe

T: Fachverband Teilchenphysik

T 70: Electronics, Trigger, DAQ III

T 70.5: Vortrag

Donnerstag, 19. März 2026, 17:15–17:30, KH 00.023

The Tile Calorimeter Trigger and Data Acquisition interface: Realtime and Readout Developments — •Anna Dunz and Thomas Junkermann — Kirchoff-Institut für Physik, Heidelberg

With the Phase-II Upgrade of the ATLAS experiment, the front- and back-end electronics for the Tile Calorimeter will be replaced. This upgrade is made necessary by the increase in luminosity of the LHC. The new electronics are designed to improve signal reconstruction while coping with more simultaneous Proton-Proton collisions.

The Tile Calorimeter Trigger and Data Acquisition interface (TDAQi) is part of the new electronics design. It is an ATCA rear transition module equipped with an AMD Kintex Ultrascale+ FPGA. The TDAQi provides an interface between the Tile Calorimeter electronics and the ATLAS trigger systems. Following the requirements of the Level-0 trigger subsystems, different algorithms are performed to calculate trigger inputs. Cell energies from the Calorimeter are decoded and high energy cells are identified. Cells are summed up to provide lower granularity objects to the electron and jet triggers. For the muon trigger, cells are summed up at a high granularity, and threshold comparisons are performed. The processing algorithms and data transmission are carried out on the FPGA. An overview of the firmware is presented with a focus on the muon system showcasing the real-time as well as read-out capabilities of the TDAQi.

Keywords: Calorimeter; Trigger; Data Acquisition; FPGA; ATLAS