宇宙線ミュオグラフィによるインフラ設備の劣化探査用検出器の開発
概要
Muography is an imaging technique using cosmic-ray muons. The principle of this technique is similar to that of X-ray radiography. However, the muography can be applied to much larger object, since the muon has high penetrating power. We have developed a portable prototype muography detector for investigation of infrastructure degradation. Through some feasibility measurements, it was found that long measurement time is required to investigate degradation. To shorten the measurement time, we have designed an upgraded muography detector with larger detection area. In the upgrade, some detector components were also renewed to improve the detection efficiency. It is expected that the upgrade muography detector is applicable to practical investigations with realistic measurement time.
