A large-scale magnetic shield with 10{sup 6} damping at millihertz frequencies

Journal Article · Thu May 14 00:00:00 EDT 2015 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.4919366· OSTI ID:22410175

Altarev, I.; Bales, M.; Fierlinger, K.; Fierlinger, P.; Kuchler, F.; Marino, M. G.; Niessen, B.; Petzoldt, G.; Singh, J. T.; Stoepler, R.; Stuiber, S.; Sturm, M.; Taubenheim, B. ^[1]; Beck, D. H. ^[2]; Chupp, T. ^[3]; Schläpfer, U. ^[4]; Schnabel, A.; Voigt, J. ^[5]

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1. Physikdepartment, Technische Universität München, D-85748 Garching (Germany)
2. University of Illinois at Urbana-Champaign, Urbana, Illinois 61801 (United States)
3. University of Michigan, Ann Arbor, Michigan 48109 (United States)
4. IMEDCO AG, CH-4614 Hägendorf (Switzerland)
5. Physikalisch-Technische Bundesanstalt, 10587 Berlin (Germany)

We present a magnetically shielded environment with a damping factor larger than 1 × 10{sup 6} at the mHz frequency regime and an extremely low field and gradient over an extended volume. This extraordinary shielding performance represents an improvement of the state-of-the-art in the difficult regime of damping very low-frequency distortions by more than an order of magnitude. This technology enables a new generation of high-precision measurements in fundamental physics and metrology, including searches for new physics far beyond the reach of accelerator-based experiments. We discuss the technical realization of the shield with its improvements in design.

• OSTI ID: 22410175
• Journal Information: Journal of Applied Physics, Vol. 117, Issue 18; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ACCURACY
DAMPING
DESIGN
MAGNETIC FIELDS
PERFORMANCE
SHIELDING
SHIELDS