MAGIS-100 Environmental Noise and Gravity Gradient Noise
ORAL
Abstract
To inform research and development for the design and commissioning of the MAGIS-100 atom interferometer at Fermilab a through understanding of the noise sources associated with the environment is required. Considerations of temperature, humidity, and vibration fluctuations arise when moving from the controlled environment of a laboratory to an underground access shaft. To better understand these effects we surveyed the environment measuring the temperature above and below ground as well as measuring and analyzing the vibration spectrum of the installation site. We also studied the seismic vibration effect of gravity gradient noise -- a limiting noise source for our science goals of ultralight scalar dark matter searches and gravitational wave measurements -- which was modeled using input from a low-noise seismometer at multiple locations, and devised a potential mitigation scheme studied through stocastic simulation.
*This project is funded in part by the Gordon and Betty Moore Foundation Grant GBMF7945. This presentation was prepared using the resources of the Fermi National Accelerator Laboratory (Fermilab), a U.S. Department of Energy, Office of Science, HEP User Facility. Fermilab is managed by Fermi Research Alliance, LLC (FRA), acting under Contract No. DE-AC02-07CH11359. This work is supported in part by the U.S. Department of Energy, Office of Science, QuantiSED Intitiative. Jeremiah Mitchell acknowledges support from the Kavli Foundation as well as the Presidential research grant from Northern Illinois University.
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Publication:J. Mitchell, T. Kovachy, S. Hahn, P. Adamson, and S. Chattopadhyay, MAGIS-100 Environmental Characterization and Noise Analysis, Journal of Instrumentation 17(01):P01007, 2022.
