A “mild-steel” vacuum chamber design under investigation in CERN's microscope lab for the Einstein Telescope beampipe

CERN’s microscopy lab is deploying a range of techniques – including focused ion-beam microscopy and scanning electron microscopy – for the analysis of candidate steels under consideration for the Einstein Telescope beampipe pilot sector. Future gravitational-wave observatories, such as the Einstein Telescope, a CERN-recognised experiment, need to be larger in order to search for a larger bandwidth of gravitational waves that could tell us more about the Universe.