Speaker
Description
TileCal is the hadron calorimeter covering the central region of the ATLAS experiment at the Large Hadron Collider. It is a sampling detector made of iron as absorber and scintillator as active material. The light produced by charged particles crossing the scintillator tiles is collected by photomultiplier tubes (PMTs). The PMT signals are digitized synchronously with the LHC clock, and the samples corresponding to events selected by the Level 1 trigger system are transmitted to the Read-Out Drivers (RODs) located in the back-end system at a maximum sustained rate of 100 kHz. The ROD is the core element of the back-end electronics, and it represents the interface between the front-end electronics and the ATLAS overall Data AcQuisition (DAQ) system. It is responsible for energy and time reconstruction, trigger and data synchronization, busy handling, data integrity checking and lossless data compression. The IFIC-TileCal group was responsible for the design, production, installation and now the maintenance of the ROD system until the end of Run 3.
The High-Luminosity Large Hadron Collider (HL-LHC) experiments will operate at unprecedented values of peak luminosity and levels of pileup. The ATLAS trigger and readout architecture has been redefined. TileCal will read out the PMTs signals for every bunch crossing before any trigger selection is applied, which implies a total bandwidth of 40 Tbps. These data will be processed by the PreProcessors (PPr) located in the off-detector electronics. The PPr modules will implement the interface with the fully digital Level 0 trigger and ATLAS overall DAQ and detector control systems. The TilePPr is a modular ATCA system composed of a custom ATCA Carrier board equipped with 4 Compact Processing Modules (CPM) and several mezzanine cards. The IFIC-TileCal group is responsible for the hardware and firmware designs, production, installation and maintenance of the PPr modules.
This presentation will provide an overview of the current and future systems for the HL-LHC, including a thorough explanation of the ongoing hardware and firmware developments within the IFIC-TileCal group.
