Description
Evaluation of the ET sites
Site characterization and environmental-noise modeling are important tasks in the preparation of the ET site-selection procedure. The site-evaluation parameters (SEP) group was created to (1) facilitate the exchange of data, software, and information between the site teams, (2) give guidance for high-quality sensor installations, (3) achieve uniformity between the analysis methods so that...
We will present the seismic studies done at the Sos Enattos mine and also in two other sites: the Matra mine and the Canfranc underground laboratory. In each location we have deployed a set of 3d time synchronized seismometers for an extended period of time. We will describe the experimental setup in each location and present the preliminary analysis of the data as well as the microquake...
The underground environment as well as all surrounding areas the facility which will host Einstein Telescope will have to be characterized for site selection, and after its building for monitoring all possible source of environmental noises. An overview of all physical-chemical processes affecting GW detectors in an underground environment is considered, particularly by: a) seismic...
The background seismic vibrations of either natural or anthropogenic origin are generally dominated by surface Rayleigh waves, whose amplitude rapidly decrease with depth. As a consequence, underground sites offer the most favourable conditions for a low-noise environment. In this study, we provide an assessment of the ground vibrations at the dismissed Sos Enattos mines (Sardinia, Italy), one...
The construction of the underground facilities to host Archimedes experiment poses some challenges for meeting the requirements on the suitable materials to reinforce the rock cavity and build the experimental room. Further constraints are linked to the operational conditions for accessing the site and allowing a safe installation and relocation of the experimental apparatus. Efficient...
A preliminary study to identify the potential location of the ET Sardinia and the geometry of the underground tunnels based on available geological data and in-situ surveys was conducted. Different geometry configurations (Triangle and L-Topology) have been analysed using digital terrain models and deformation data from satellite data in order to investigate the present conditions at the...
The 2011 ET Conceptual Design Report identified the EUregion Meuse-Rhin –the Belgium-Dutch-German border region– as a potential site for Einstein Telescope. This presentation will give an update of the drilling activity to assess the seismic noise and the plans towards a broader geological study. Other issues like a recently published socio-economic impact study, new gravitational-waves...
