Speaker
Description
We propose developing a fast-closing, ultra-high vacuum (UHV) shutter system to protect the Einstein Telescope. Even minor vacuum failures or sudden large leaks in next-generation gravitational-wave observatories can generate pressure fronts that propagate at velocities of up to ~1000 meters per second. These pressure fronts pose a serious risk to sensitive optical components, such as mirrors, baffles and beamline structures. The aim of this concept is to design a shutter that can close within the millisecond range in order to isolate affected beamline sections before destructive pressure waves reach critical subsystems. The proposed system consists of a rapidly actuated blade, driven by a high-speed energy release mechanism, and a controlled braking stage to ensure precise final positioning and energy dissipation.