A magnetically shielded room with ultra low residual field and gradient

Altarev, I.; Stoepler, R.; Fan, I.; McAndrew, J.; Chupp, T.; Degenkolb, S.; Trahms, L.; Schnabel, A.; Singh, J.; Schläpfer, U.; Frei, A.; Taubenheim, B.; Marino, M.; Babcock, E.; Kuchler, F.; Sharma, S.; Voigt, J.; Burghoff, M.; Stuiber, S.; Fierlinger, P.; Gutsmiedl, E.; Paul, S.; Sturm, M.; Link, P.; Chesnevskaya, S.; Lins, T.; Beck, D.; Niessen, B.; Zechlau, T.; Knappe-Grüneberg, S.; Petzoldt, G.; Lauer, T.

doi:10.1063/1.4886146

Journal Article

FZJ-2015-01194

A magnetically shielded room with ultra low residual field and gradient

Altarev, I. ; Babcock, E.FZJ* ; Beck, D. ; Burghoff, M. ; Chesnevskaya, S. ; Chupp, T. ; Degenkolb, S. ; Fan, I. ; Fierlinger, P. (Corresponding Author) ; Frei, A. ; Gutsmiedl, E. ; Knappe-Grüneberg, S. ; Kuchler, F. ; Lauer, T. ; Link, P. ; Lins, T. ; Marino, M. ; McAndrew, J. ; Niessen, B. ; Paul, S. ; Petzoldt, G. ; Schläpfer, U. ; Schnabel, A. ; Sharma, S. ; Singh, J. ; Stoepler, R. ; Stuiber, S. ; Sturm, M. ; Taubenheim, B. ; Trahms, L. ; Voigt, J.FZJ* ; Zechlau, T.

2014
American Institute of Physics [S.l.]

Review of scientific instruments 85(7), 075106 (2014) [10.1063/1.4886146]

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Please use a persistent id in citations: http://hdl.handle.net/2128/16269 doi:10.1063/1.4886146

Abstract: A versatile and portable magnetically shielded room with a field of (700 ± 200) pT within a central volume of 1 m × 1 m × 1 m and a field gradient less than 300 pT/m, achieved without any external field stabilization or compensation, is described. This performance represents more than a hundredfold improvement of the state of the art for a two-layer magnetic shield and provides an environment suitable for a next generation of precision experiments in fundamental physics at low energies; in particular, searches for electric dipole moments of fundamental systems and tests of Lorentz-invariance based on spin-precession experiments. Studies of the residual fields and their sources enable improved design of future ultra-low gradient environments and experimental apparatus. This has implications for developments of magnetometry beyond the femto-Tesla scale in, for example, biomagnetism, geosciences, and security applications and in general low-field nuclear magnetic resonance (NMR) measurements.

Keyword(s): Instrument and Method Development (1st) ; Others (1st) ; Fundamental Science (1st) ; Instrument and Method Development (2nd) ; Nuclear Physics (2nd)