Abstract
Tomography based on cosmic muon absorption is a rising technique because of its versatility and its consolidation as a geophysics tool over the past decade. It allows us to address major societal issues such as long-term stability of natural and man-made large infrastructures or sustainable underwater management. Traditionally, muon trackers consist of hodoscopes or multilayer detectors. For applications with challenging available volumes or the wide field of view required, a thin time projection chamber (TPC) associated with a Micromegas readout plane can provide a good tradeoff between compactness and performance. This paper details the design of such a TPC aiming at maximizing primary signal and minimizing track reconstruction artifacts. The results of the measurements performed during a case study addressing the aforementioned applications are discussed. The current works lines and perspectives of the project are also presented.
Highlights
Climate change, agricultural yield limitations and rising demographic pressure are amongst the most important challenges that society faces today on the path toward sustainability [1]
Agricultural yield limitations and rising demographic pressure are amongst the most important challenges that society faces today on the path toward sustainability [1]. These factors increase the stress on water resources and cause an intensification of underground water exploitation
Muon tomography refers to a set of imaging methods to visualize the internal structure and physical properties of man-made objects and geological edifices based on the measurement of absorption or scattering of natural-occurring cosmic ray muons
Summary
Agricultural yield limitations and rising demographic pressure are amongst the most important challenges that society faces today on the path toward sustainability [1]. Men has largely built water storage infrastructures, dams, to regulate river flow worldwide and to recharge underground aquifers Their design has evolved to fit specific context factors such as: geology, storage capacity, intended function, availability of materials and funds. Muon tomography (or muography) refers to a set of imaging methods to visualize the internal structure and physical properties of man-made objects and geological edifices based on the measurement of absorption or scattering of natural-occurring cosmic ray muons. This non-destructive, passive technique provides original information that can be used for diverse imaging purposes [8]. The T2DM2 project has developed a muon tracker [14] to work under these conditions and with a performance analogue to classic geophysics methods
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