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Huddle test measurement of a near Johnson noise limited geophone
R. Kirchhoff, C. M. Mow-Lowry, V. B. Adya +11
In this paper the sensor noise of two geophone configurations (L-22D and L-4C geophones from Sercel with custom built amplifiers) was measured by performing two huddle tests. It is…
Demonstration of a switchable damping system to allow low-noise operation of high-Q low-mass suspension systems
Jan-Simon Hennig, Bryan W. Barr, Angus S. Bell +16
Low mass suspension systems with high-Q pendulum stages are used to enable quantum radiation pressure noise limited experiments. Utilising multiple pendulum stages with vertical bl…
Passive-performance, analysis, and upgrades of a 1-ton seismic attenuation system
G Bergmann, C M Mow-Lowry, V B Adya +13
The 10m Prototype facility at the Albert-Einstein-Institute (AEI) in Hanover, Germany, employs three large seismic attenuation systems to reduce mechanical motion. The AEI Seismic-…