Optical Readout for the ICARUS Cosmic Ray Tagger

The ICARUS Cosmic Ray Tagger is a vital subsystem to the ICARUS detector at the Fermilab Short-Baseline Neutrino program, providing rejection of signals that mimic neutrino events. The sides of the Tagger are being made with repurposed MINOS scintillator, but requires a new optical readout. The Colorado State University group has developed a readout system based in silicon photomultipliers, and will be producing them at their Fort Collins, Colorado facility. In this talk, we present the light yield requirements for the system and the final production design.