Details

Autor(en) / Beteiligte

• Altarev, I.
• Babcock, E.
• Beck, D.
• Burghoff, M.
• Chesnevskaya, S.
• Chupp, T.
• Degenkolb, S.
• Fan, I.
• Fierlinger, P.
• 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.
• Zechlau, T.

Titel

A magnetically shielded room with ultra low residual field and gradient

Ist Teil von

• Review of scientific instruments, 2014-07, Vol.85 (7)

Erscheinungsjahr

2014

Beschreibungen/Notizen

• 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.