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The Optically Segmented Single Volume Scatter Camera (OS-SVSC) aims to imageneutron sources for non-proliferation applications using the kinematicreconstruction of elastic double-scatter events. Our prototype system consistsof 64 EJ-204 organic plastic scintillator bars, each measuring 5 mm $\times$ 5mm $\times$ 200 mm and individually wrapped in Teflon tape. The scintillatorarray is optically coupled to two silicon photomultiplier ArrayJ-60035 64P-PCBarrays, each comprised of 64 individual 6 $\times$ 6 mm J-Series sensorsarranged in an 8 $\times$ 8 array. We detail our calibration efforts, beginningwith calibrations for the electronics, based on the IRS3D application-specificintegrated circuits, and their associated timing resolutions, ranging from 30ps to 90 ps. With electronics calibrations applied, energy and positioncalibrations were performed for a set of edge bars using $^{22}$Na and$^{90}$Sr, respectively, reporting an average resolution of (12.07$\pm$0.03) mmfor energy depositions between 900 keVee and 1000 keVee. We further demonstratea position calibration method for the internal bars of the matrix usingcosmic-ray muons as an alternative to emission sources that cannot easilyaccess these bars, with an average measured resolution of (14.86$\pm$0.29) mmfor depositions between 900 keVee and 1000 keVee. The coincident timeresolution reported between pairs of bars measured up to 400 ps from muonacquisitions. Energy and position calibration values measured with muons areconsistent with those obtained using particle emission sources.

Design and Calibration of an Optically Segmented Single Volume Scatter Camera for Neutron Imaging