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We report on the position, timing, and energy resolution of a range ofplastic scintillator bars and reflector treatments using dual-ended siliconphotomultiplier readout. These measurements are motivated by the upcomingconstruction of an optically segmented single-volume neutron scatter camera, inwhich neutron elastic scattering off of hydrogen is used to kinematicallyreconstruct the source direction and energy of an incoming neutron. For thisapplication, interaction position resolutions of about 10 mm and timingresolutions of about 1 ns are necessary to achieve the desired efficiency forfission-energy neutrons. The results presented here indicate that this isachievable with an array of $5\times5\times190~\mathrm{mm}^3$ bars of EJ-204scintillator wrapped in Teflon tape, read out with SensL's J-series$6\times6~\mathrm{mm}^2$ silicon photomultipliers. With two independent setups,we also explore the systematic variability of the position resolution, and showthat, in general, using the difference in the pulse arrival time at the twoends is less susceptible to systematic variation than using the log ratio ofthe charge amplitude of the two ends. Finally, we measure a bias in theabsolute time of interactions as a function of position along the bar: themeasured interaction time for events at the center of the bar is $\sim$100 pslater than interactions near the SiPM.

Interaction position, time, and energy resolution in organic scintillator bars with dual-ended readout