{"paper":{"title":"A magnetically shielded room with ultra low residual field and gradient","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.ins-det","authors_text":"A. Frei, A. Schnabel, B. Niessen, B. Taubenheim, D. Beck, E. Babcock, E. Gutsmiedl, F. Kuchler, G. Petzoldt, I. Altarev, I. Fan, J. McAndrew, J. Singh, J. Voigt, L. Trahms, M. Burghoff, M. Marino, M. Sturm, P. Fierlinger, P. Link, R. Stoepler, S. Chesnevskaya, S. Degenkolb, S. Knappe-Gr\\\"uneberg, S. Paul, S. Sharma, S. Stuiber, T. Chupp, T. Lauer, T. Lins, T. Zechlau, U. Schl\\\"apfer","submitted_at":"2014-03-25T03:01:29Z","abstract_excerpt":"A versatile and portable magnetically shielded room with a field of (700 \\pm 200) pT within a central volume of 1m x 1m x 1m and a field gradient less than 300 pT/m is described. This performance represents more than a hundred-fold 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 "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1403.6467","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}