Muographic Survey of Infrastructure Degradation for Operation & Maintenance

Abstract

Recently, cosmic-ray muon radiography, called muography, has been widely developing by many researchers. The muon has high energy enough to penetrate large scaled objects such as volcanos and pyramids. There is no existing method to investigate such objects except muography, and the muography technique will reveal volcano eruption dynamics for disaster defense or provide new archaeologic knowledge. We have focused on muography of small or middle scaled infrastructure buildings, such as incinerators, bridges and dams. In the present paper, structure and characteristics of our muography detector are described. In addition, an example of results of infrastructure muography is shown, and its feasibility is discussed.