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Detection efficiency of plastic scintillators for elastically scattered positive pions Felawka, Larry Thomas


The efficiency for detecting positive pions which have been scattered elastically from a target has been calculated for low pion energies. Measurements of the efficiency at pion kinetic energies 12 - 77 MeV were made for a 12" long x 5" diameter NE110 plastic scintillator optically coupled to a Philips XP1040 photomultiplier tube. The efficiencies varied from 94% at 12 MeV to 79% at 77 MeV.

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