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[en] To the main tasks in the CMS experiment at the planned High-Luminosity LHC (HL-LHC) with an aimes instantaneous luminosity of L=10"3"5/(cm"2.s) belongs the fitting of the muon system. On the one hand the trigger rate of the muons must be reduced, because the actual level-1 trigger system would distinctly exceed the reserved band width, on the other hand the increasing number of ambiguities by coincident hits in the muon chambers, the so called ghost hits, must be resolved. With the Muon Track fast Tag (MTT), a two-dimensional detector layer in the barrel region, immediately in front of the first muon chambers, a concrete proposal or the solution of these problems is present. The III. Physical Institute of the RWTH Aachen works with a conversion of the MTT system on the base of fast plastic scintillators read ouf by silicon photomultipliers (SiPMs). This thesis presents studies of a prototype detector with a scintillator of the dimension 100 x 100 x 5 mm"3 and dual SiPM readout. In measurement series with cosmic muons single module parameter were systematically studied and optimize. To thed se belong for instance the optical coupling between SiPM and scintillator or the wrapping up of the detectors with reflecting material. The prototype detector reaches a detection efficiency of above 99.5% at a signal purity of 99.9%.