Kavli Affiliate: Brian Lantz
| First 5 Authors: Tomislav Andric, Tomislav Andric, , ,
| Summary:
GEMINI is an underground research and development facility dedicated to
advancing seismic isolation and control technologies for future
gravitational-wave observatories, including the Einstein Telescope (ET) and the
Lunar Gravitational-Wave Antenna (LGWA). This paper presents the technical
design and theoretical framework of GEMINI’s active seismic isolation
platforms, including detailed noise budget analyses, performance predictions,
and residual platform motion evaluations. The GEMINI platforms are designed to
achieve unprecedented vibration isolation, targeting motion suppression across
the 10 mHz to 10 Hz frequency band, and with the goal to make them the quietest
platforms of their kind. In the context of ET, GEMINI will enable the
development and validation of inter-platform control strategies essential for
the stabilization of auxiliary degrees of freedom of its interferometers.
GEMINI will also support the testing of cryogenic payloads and ultra-sensitive
inertial sensors required for LGWA. By integrating advanced cryogenic systems,
precision inertial sensors, and state-of-the-art vibration isolation
technologies, GEMINI will serve as a versatile testbed for next-generation
ground-based gravitational-wave detectors and lunar seismometry missions.
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