A large-scale magnetic shield with 106 damping at millihertz frequencies

I. Altarev, M. Bales, D. H. Beck, T. Chupp, K. Fierlinger, P. Fierlinger, F. Kuchler, T. Lins, M. G. Marino, B. Niessen, G. Petzoldt, U. Schläpfer, A. Schnabel, J. T. Singh, R. Stoepler, S. Stuiber, M. Sturm, B. Taubenheim, J. Voigt

Research output: Contribution to journalArticlepeer-review


We present a magnetically shielded environment with a damping factor larger than 1 × 106 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.

Original languageEnglish (US)
Article number183903
JournalJournal of Applied Physics
Issue number18
StatePublished - May 14 2015

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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