Light yield and radiation hardness studies of scintillator strips with a filler
2019
Abstract Detectors based on polystyrene scintillator strips with WLS fiber readout are widely used to register charged particles in many high-energy physics experiments. The fibers are placed into grooves or holes along the strip. The detection efficiency of these devices can be significantly increased by improving the optical contact between the scintillator and the fiber by adding an optical filler into the groove/hole. This work is devoted to the study of the light yield of a 5 m long scintillator strip with a 1.2 mm diameter Kuraray Y11(200) MC WLS fiber inserted into the strip’s co-extruded hole filled with synthetic silicon resin SKTN-MED(E). The light yield was studied using cosmic muons and a 60 Co radioactive source. Viscous fillers and short strip samples were irradiated by neutrons on the IBR-2 pulsed research reactor at JINR.
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