Towers are ~11×11 cm, the fiber bundle is ~6mm across.
The SiPMs are 3x3mm, so we need some light guide to get from 6mm round
to 3×3 square.
Pictures (ppt)
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A trigger plane is needed to cover a 2×2 stack of modules. We'll use the 16×19 mm scintillator bars we have from the dark photon detector. | |
Readout is with the S13360-3050CS SiPMs from Hamamatsu |