发表机构
Chung-Ang University（中央大学）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
本研究利用宇宙射线缪子在水下隧道中监测海水覆盖层随潮汐的变化，通过缪子成像定量分辨米级覆盖层变化，为动态自然系统监测提供新方法。
AI 中文摘要
宇宙射线缪子提供了沿其轨迹积分质量的天然探针。在此，我们展示了宇宙射线缪子能够监测水下隧道内海水覆盖层随海洋潮汐引起的变化。观测到的调制与独立的验潮仪测量紧密吻合，得出衰减响应系数为$k=43.2\pm1.0$计数/小时/米，并能分辨出米级的海水覆盖层变化。空间缪子成像扫描验证了覆盖层模型，确认海水贡献对于重现观测到的衰减至关重要。与传统验潮仪局部测量海平面不同，缪子成像测量的是探测器上方的积分覆盖层。这些结果表明，缪子成像能够定量分辨环境中覆盖层的小幅、随时间变化的变化，为监测动态自然系统提供了一种新方法。
英文摘要
Cosmic-ray muons provide a natural probe of the integrated mass along their trajectories. Here we show that cosmic-ray muons can monitor ocean-tide-induced variations in seawater overburden within an underwater tunnel. The observed modulation closely tracks independent tide-gauge measurements, yielding an attenuation response coefficient of $k=43.2\pm1.0$~counts$\rm /h/m$ and resolving meter-scale variations in seawater overburden. A spatial muography scan validates the overburden model, confirming that the seawater contribution is essential to reproduce the observed attenuation. Unlike conventional tide gauges that measure sea level locally, muography measures the integrated overburden above the detector. These results demonstrate that muography can quantitatively resolve small, time-dependent variations in environmental overburden, providing a new approach to monitoring dynamic natural systems.
Comments12pages, 6 figures
