Modular Cosmic Ray Telescope Achieves Millimeter-Level Muon Tracking

This article describes the development and testing of a modular large-area cosmic ray telescope designed for millimeter-level muon tracking. The telescope consists of two parallel super-layers, each composed of two orthogonal detection layers. The detection layers utilize a scintillator-fiber hybrid design, where plastic scintillating bars are precisely aligned and stacked on top of scintillating fiber mats. Signals from the scintillating bars and fibers are combined to determine hit positions, allowing for high spatial resolution with a reduced number of readout electronic channels. Experimental results demonstrate that the telescope achieves a position resolution better than 2 mm and an overall detection efficiency of approximately 85%. The innovative design keeps the manufacturing cost low while maintaining high spatial resolution and detection efficiency. This makes it a valuable tool for experimental particle physics, particularly in studies involving cosmic-ray muons. The modular design also allows for scalability and adaptability to different experimental requirements.

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