Einstein Telescope (E-Test)
The Einstein Telescope (ET) is an advanced gravitational-wave observatory, currently in the planning stage that allows to further understanding the Universe through the observation of gravitational waves. The border region between the Netherlands, Belgium and Germany (Euregio Meuse-Rhine) is being considered as a possible location due to its tranquility and stable ground. The ET project involves construction of a triangular shape underground facility with 10 kilometers long arms at a depth of 200-300 meters below surface. The subsurface structure will then host multiple laser interferometers, each of which can detect ripples in the fabric of space-time. As an initial step, a feasibility study to determine whether the Einstein telescope can be built in the Euregio Meuse-Rhine is planned to be carried out.
The E-TEST project is carried out within the framework of the Interreg V-A Euregio Meuse-Rhine program, which is supported by the European Regional Development Fund (ERDF) with 7.5 million euros. By allocating EU funds to Interreg projects, the European Union is investing directly in economic development, innovation, territorial development, social inclusion and education in the Euregio Meuse-Rhine. Further funding is provided by the Dutch Ministry of Economic Affairs, the State of North Rhine-Westphalia, the Province of Flemish Brabant, the Province of Belgian Limburg, the Province of Dutch Limburg, Flanders and Wallonia. Under the leadership of the University of Liège, 11 universities and research institutions from Belgium, the Netherlands and Germany will carry out the feasibility study. For this purpose, the E-TEST project will take an inventory of the underground in the Euregio Meuse-Rhine. The geological investigations will start in mid-2020 and should be completed by the end of 2022. A monitoring system and a geological model will be set up. This will allow geological aspects such as groundwater levels and earthquakes to be modelled, simulated and predicted. The aim of the project is to find the best possible location for the Einstein telescope in the Euregio Meuse-Rhine.