TA-POS-2016-022

The PANDA Experiment is planned to operate at the Facility for Antiproton and Ion Research (FAIR) which is currently under construction at Darmstadt. PANDA will address many key topics of hadron physics. The physics program requires a versatile detector system covering the full acceptance and the complete set of observables. For the core systems the technical design is complete. We collected conclusive data sets from prototype beam tests to complete the design of the particle identication detectors. First detector systems are already under construction.
To achieve its physics goals, PANDA has to face several challenges regarding detectors with a small material budget, high resolution, fast readout electronics and event selection. In this contribution a selection of systems are presented to illustrate how these challenges are met.
A radiation hard silicon vertex detector with self triggering hybrid pixels and micro-strips was developed for the precise determination of decay and interaction points. The design features a very small material budget and high readout speed.
Straw tubes that are operated with over-pressure to become self-supporting are employed as trackers in the magnetic eld. A very low mass design was achieved with this concept both for the tracking inside the solenoid magnet as well as around the dipole magnet.
Electromagnetic calorimetry with lead tungstate crystals is brought to its best performance at PANDA by operation at -25C and employing especially developed large area avalanche photo-diodes.
The principle of detection of internally reflected Cherenkov light (DIRC) is significantly improved in performance and compactness for the identication of charged particles and employed in two locations in the experiment.
Finally, the data acquisition (DAQ) is designed to select interesting events online without any hardwired trigger. This gives full flexibility to the experiment and makes it possible to program the DAQ for measurements of new physics channels not considered yet at the beginning.