【摘要】 地下多μ现象的观测是研究“膝”区（1015—1016eV）宇宙线成分的一种重要方法．现有的地下探测器对于成分研究不甚理想，因为它们原本主要是为其它目的而设计的．我们提出一种新的途径：用一个探测器陈列在浅层地下观测多μ事例．这一方法对成分研究具有较高的灵敏度．更多还原

【Abstract】 The observation of underground multimuon phenomena is an important way for the study of the cosmic ray composition in the ’knee’ region (1015-1016 eV). It is noticed that the existing underground detectors are not very ideal for the composihon study because they were originally designed mainly for other aims. A new approach having higher sensitivity for this study by observing multimuon events using a detector array in a shallower depth underground is presented.更多还原