Development of a Scintillation Muon Shield for Low-Background Experiments

A technique for producing, adjusting, and testing large-area scintillation detectors (≥1 m 2 ) for active cosmic muon shielding in low-background experiments is presented. The detectors developed feature a high efficiency (~99.75%) and low light collection inhomogeneity (≤25%); they can be used to construct modular systems for active muon shielding with different coverage areas and the interchangeability of modules. The testing method applied makes it possible to significantly reduce the time of checking light collection inhomogeneity of scintillation panels