Würzburg 2018 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 14: Gasgefüllte Detektoren I
T 14.6: Vortrag
Montag, 19. März 2018, 17:20–17:35, Z6 - SR 2.002
Results of a Testbeam Campaign with a Micromegas Quadruplet — •Philipp Lösel1, Otmar Biebel1, Robin Boshuis3, Andreas Düdder2, Bernhard Flierl1, Maximilian Herrmann1, Ralf Hertenberger1, Felix Klitzner1, Ralph Müller1, Friedemann Neuhaus2, and Andre Zibell3 — 1LMU München — 2JGU Mainz — 3Uni Würzburg
In a testbeam campaign at the H8 beamline at SPS/CERN the first SM2 Micromegas quadruplet for the NSW upgrade of the ATLAS Muon Spectrometer
at CERN was investigated using pions and muons. The two square meter sized Micromegas quadruplet consist of two eta layers, which will give position information of
the traversing muons in radial direction of the ATLAS experiment, and two stereo layers. The combination of the stereo layers, where the strips
are rotated by ± 1.5∘ with respect to the eta strips, will give position information in both radial direction as well as along the strips.
We will present results on the spatial resolution in the precise radial direction as well as along the strips. The spatial resolution is determined for perpendicular traversing charged particles as well as for the tilted SM2 quadruplet. The track reconstruction of the quadruplet compared to the reference track reconstructed by a telescope consisting of two-dimensional GEM and Micromegas detectors will be discussed. Additionally on the homogeneity in gas gain and efficiency will be reported.