A Coordinate Muon Chamber Based on Thin-Walled Drift Tubes

摘要

The design and manufacturing technology of a prototype coordinate detector module with dimensions of 2.0 × 0.5 m~2 on the basis of 2-m-long drift straw tubes are described. The selected design and technology allow large-area detectors to be constructed from these modules. Results of the module testing at gas pressures of 1-4 bar are described. The characteristic features of the module are a small radiation thickness, a high radiation hardness, a high detection efficiency for charged particles, as well as the feasibility of its high granularity (using small-diameter straw tubes and segmentation along the tube length). The possibility of optimizing the operating conditions of the module over a wide range of the working gas pressure is shown.