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A: This work describes the development of the first demonstrator device for neutron detection based on a 6 Li-glass as a scintillator and silicon photomultipliers (SiPM) as photodetector. For the first characterization, the scintillator was pixelated with a one to one correspondence between scintillator and SiPM pixels, and optical cross-talk between pixels was minimized. Measurements in a high luminosity neutron beam show the functionality of the device and allow for partial characterization. The position resolution is 4 × 4 mm 2 and the detection efficiency of neutrons is 91(6) % relative to the active area. The device is linear up to at least 600 kcps. K: Neutron detectors (cold, thermal neutrons), Scintillators, Photon detectors for visible photons (SiPMs) 1Corresponding author

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