Boone, Tyler N., authorWilson, Robert, advisorFairbank, William, committee memberMooney, Michael, committee memberBrandl, Alexander, committee member2024-09-092024-09-092024https://hdl.handle.net/10217/239262The ICARUS Cosmic Ray Tagger (CRT) was constructed with the goal to tag cosmogenic muons passing through the ICARUS Time Projection Chamber (TPC). Construction and commissioning of the detector began in Fall 2019 with the Side CRT North wall and continued for several years through the installation of the Top CRT. In this thesis I will summarize my contributions to the CRT system and describe a measurement of the installed CRT detection efficiency using the TPC.born digitaldoctoral dissertationsengCopyright and other restrictions may apply. User is responsible for compliance with all applicable laws. For information about copyright law, please see https://libguides.colostate.edu/copyright.CRTvetoefficiencycosmicText