TY  - THES
AB  - With the Pierre Auger Observatory, being the largest air shower detector setup in the world, ultra-high-energy cosmic rays are studied with full trigger efficiency above E = 3E18 eV. In order to achieve a more detailed understanding of cosmic ray physics at lower energies down to E ≈ 1E17 eV, e.g. the transition from galactic to extragalactic sources and a possible change in the composition of the primary cosmic rays, the observatory is currently upgraded by the AMIGA enhancement (Auger Muons and Infill for the Ground Array). The muon counters of AMIGA, buried underground, will allow for dedicated measurements of the number of muons in air showers, thus increasing the precision in determining the type of the primary particle. Until middle of 2012, eight prototype muon counters of the AMIGA enhancement were installed at the experimental site of the Pierre Auger Observatory at Malargüe, Argentina, forming one detector hexagon referred to as the pre-unitary cell (PUC). Each muon counter comprises a highly modular electronics readout system. Following the production of these systems, tests of single components as well as of the full readout electronics were carried out. In the framework of this thesis dedicated firmware, allowing for the commissioning and first data taking with the PUC, has been developed and tested. Among other features, this firmware includes a self-trigger of the muon counters as well as algorithms for the synchronization of the muon detector (MD) with the existing surface detector (SD) array. The functionality and performance of the electronics readout system with regard to this firmware has been investigated. In addition, first analyses of combined MD and SD data have been performed.
AU  - Fröhlich, Uwe
DA  - 2013
KW  - Pierre-Auger-Observatorium
KW  - Myondetektor
KW  - Astroteilchenphysik
KW  - muon detector
KW  - astroparticle physics
KW  - AMIGA
LA  - eng
PY  - 2013
TI  - Firmware, detector performance and first data of the AMIGA muon counters for the Pierre Auger Observatory
UR  - https://nbn-resolving.org/urn:nbn:de:hbz:467-7737
Y2  - 2024-11-22T06:29:45
ER  -