![]() ![]() If location is everything, Geneva ticks all the boxes in this regard. Focused on enabling technologies for current and future gravitational-wave observatories – specifically, their ultrahigh-vacuum (UHV) beampipe requirements – the workshop attracted a cross-disciplinary audience of 85 specialists drawn from the particle-accelerator and gravitational-wave communities alongside industry experts spanning steel production, pipe manufacturing and vacuum technologies ( CERN Courier July/August 2023 p18). The hope is that the emerging cosmological data sets will, over time, yield unique insights to address fundamental problems in physics and astrophysics – the distribution of matter in the early universe, for example, and the search for dark matter and dark energy.īy contrast, an altogether more down-to-earth agenda – Beampipes for Gravitational Wave Telescopes 2023 – provided the backdrop for a three-day workshop held at CERN at the end of March. ![]() Not only that, direct observation of gravitational ripples in the fabric of space-time opened up a new window on the universe that enables astronomers to study cataclysmic events such as black-hole collisions, supernovae and the merging of neutron stars. The first detection of gravitational waves in 2015 stands as a confirmation of Einstein’s prediction in his general theory of relativity and represents one of the most significant milestones in contemporary physics. Above: CERN members of the Einstein Telescope beampipe study teams install the first pre-prototype beampipe demonstrator. Project planning Two CERN groups are engaged as contributing partners on the beampipe studies for the Einstein Telescope - specifically, the vacuum, surfaces and coatings (TE-VSC) and mechanical and materials engineering (EN-MME) groups. Paolo Chiggiato and Luigi Scibile explain how that collective expertise is being put to work as part of the international effort to develop the next generation of gravitational-wave telescopes. ![]() CERN is home to a unique centre-of-excellence in vacuum science, technology and engineering. ![]()
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