Nuclear emulsions with high positional resolution have long been used in particle physics experiments. In the field of muography, it has recently become known around the world as one of the techniques for imaging the inner structure of nuclear reactors and pyramids. We considered using nuclear emulsions which are compact, power-less, waterproof to observe the density distribution inside a...
We have developed a portable muography detector for internal infrastructure condition exploration and feasibility study for underground cavity detection [1]. The detector comprises two muon position sensitive detectors (mu-PSDs), with a detection area of 132 \times 132 mm$^2$ each. In a test measurement of a seven-story building from underground, we found this simple system could identify...
The LouMu collaboration was established between the Laboratory of Instrumentation and Experimental Particle Physics (LIP), the Institute of Earth Sciences (ICT) and the Ciência Viva Center of Lousal, to create the conditions for the use of muography as a novel method for subsurface geophysical surveys in Portugal, starting by an end-to-end test at the Lousal Mine. The exploitation of the...
The LouMu collaboration started developing transmission muography in 2019 with a Resistive Plate Chambers detector built by LIP. In its first campaign, the detector acquired data at various positions of the Physics Department building of the University of Coimbra. There, the detector acquired data at various locations at the Physics Department building. At each of these, the detector’s...
We applied muography for inspecting rock-filled debris dams that are consolidating river basins and allowing erosion control and flood protection of mountainous areas. The mass density image of a debris dam in the Karasugawa river, Gunma, Japan was produced with a spatial resolution of 0.5 m × 0.5 m. The comparison of density data reconstructed by muography and gamma-ray logging suggest the...
Using muon tomography to detect tunnels has been suggested and studied with promising results. This work revisits the idea in the context of border tunnels with applications to drug interdiction and military intrusions. Unlike previous studies, this work considers the detection of border tunnels as they are being built with the goal of detecting tunnels before they cross the border. Various...
A high resolution muography survey has been performed in the Királylaki tunnel in Budapest to search for unknown cavities. Preliminary radiographic measurements suggested large density anomalies above the tunnels in a 20--60 m thick cherty dolomite rock. Triangulation helped estimating the location and size of the anomalies, but for excavation, more precise information was needed.
A...
Transmission-based muography (TM) is becoming an innovative and non-destructive imaging technique based on the measurement of the cosmic ray muon flux attenuation within the matter, allowing the reconstruction of 2D-3D transmission and density polar maps. The presented abstract introduces our latest results about the TM technique measurements we have carried out with the aim of ore bodies...
The TRUST-ME project is a new application of MUon Survey Tomography based on Micromegas detector for Unreachable Sites Technology (MUST²) to address a societal challenge of increasing importance: sustainable water management. To this end, a network of application-oriented muon trackers is being developed to both survey groundwater in aquifers and enhance the safety and operational efficiency...
