A Tracking Fiber Detector based on Silicon Photomultipliers for the Kaos   Spectrometer
  A tracking detector based on two meters long scintillating fibers read out by silicon photomultipliers (SiPM) is being developed for the Kaos spectrometer at the Mainz Microtron MAMI. Results from a prototype setup using 2 mm square fibers and large area SiPM readout are presented. The detection efficiency of such a combination was measured to be between 83 and 100% depending on the threshold on the SiPM amplitude. A Monte Carlo simulation based on a physical model was employed in order to extract the photon detection efficiency of the SiPM devices. 
P. Achenbach, J. Pochodzalla, S. S\'anchez Majos
physics.ins-det nucl-ex