Dresden 2013 – scientific programme

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T: Fachverband Teilchenphysik

T 72: Myondetektoren 2

T 72.7: Talk

Monday, March 4, 2013, 18:15–18:30, GER-039

Scintillating Detector with SiPM Readout for Spatial Resolution of Cosmic Muon — •Ralph Mueller, Alexander Ruschke, Thomas Nunnemann, Ralf Hertenberger, and Otmar Biebel — LS Schaile, LMU-Muenchen

A scintillation detector with two-dimensional position resolution and SiPM readout has been investigated with 160 GeV pions and cosmic muons.

Position resolution in one direction is achieved by separation of the rectangular cross section into two trapezoidal sections of plastic scintillator. Each trapezoid is optically insulated against the other. The amount of light produced by incoming particles is proportional to their path length and thus position dependent. The position resolution in the perpendicular dimension is determined by the propagation time of the light.

Each trapezoid is read out by five wavelength shifting fibers coupled to SiPM's. The SiPM's of each half are situated on opposite sites of the assembly.

We report on light-output and light-propagation and on the spatial resolution by comparing the different propagation times of the light pulses.