Münster 2017 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 70: Myondetektoren
T 70.5: Vortrag
Dienstag, 28. März 2017, 17:50–18:05, VSH 06
Muon Tomography with a Detector Test Facility — •Maximilian Herrmann1, Otmar Biebel1, Bernhard Flierl1, Isabel Frank1, Ralf Hertenberger1, Felix Klitzner1, Philipp Lösel1, Ralph Müller1, Chrysostomos Valderanis1, and André Zibell2 — 1LMU München — 2JMU Würzburg
Cosmic muons are well suited for the calibration of gaseous detectors used for the tracking of minimum ionizing particles.
The LMU cosmic ray facility in Garching, built for the calibration of Monitored Drift Tube (MDT) chambers for the ATLAS muon spectrometer, is meanwhile used to calibrate large area micropattern detectors.
Two reference MDT chambers are sandwiching the detector under investigation.
The track prediction of both MDT chambers is then compared to the hit position reconstructed by the detector under investigation.
Using muon entrance angles between 0∘ and 30∘ allows for the detection of deviations in the detector geometry from design values in 3D.
In this talk the capability of the cosmic ray facility to detect multiple scattering will be used for muon tomography.
Geometrical properties and positions of material between the two MDT chambers can be detected by the reconstruction of the cosmic muon track in both detectors.
The intersection of both tracks, when having a relative angle close to the multiple scattering prediction, allows to reconstruct complex objects.
This will be demonstrated on the example of a large area Micromegas detector being under investigation between the two reference chambers.