Speaker
Mr
DINGANE HLALUKU
(University of the Witwatersrand (ZA))
Description
The LHC has planned a series of upgrades culminating in the High Luminosity LHC (HL-LHC) which will have
an average luminosity 5-7 times larger than the nominal Run-2 value. The ATLAS Tile Calorimeter (TileCal) will undergo an upgrade to accommodate to the HL-LHC parameters. The TileCal electronics both on- and off-detector will be completely redesigned and a new readout architecture will be adopted.
The photomultiplier signals will be digitized and transferred to the TileCal PreProcessors (PPr) located off-detector for every bunch crossing. Then, the PPr will provide preprocessed digital data to the first level of trigger with improved spatial granularity and energy resolution with respect to the current analog trigger signals.
We plan to insert one TileCal module instrumented with the new electronics in the real detector to evaluate and qualify the new readout and trigger concepts in the overall ATLAS data acquisition system. This new drawer, so-called Hybrid Demonstrator, must provide analog trigger signal for backward compatibility with the current system. The 3in1 front-end option has been mounted in this Demonstrator which provides all the upgrade functionalities but maintaining the analog trigger signals.
This Demonstrator drawer has been inserted in a TileCal module prototype to evaluate the operability and performance in the lab . In parallel, one more TileCal module has been instrumented with other two front-end electronics options based on custom ASICs (QIE and FATALIC) which are under evaluation.
This two modules equipped with Phase-II upgrade electronics together with three modules equipped with the legacy system where exposed to different particles and energies in three test-beam campaigns during 2015 and 2016.
This contribution will describe in detail the different components of the new readout electronics for the three options under evaluation. We will present the firmware and software developed explicitly for the tests with beam and we will show performance results for different types of particles as well as for calibration data.
Primary author
TileCal SPEAKERS COMMITTEE
(ATLAS)
