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

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.
Authors:
; ; ; ; ; ; ; ; ; ; ; ;  [1] ;  [2] ;  [3] ;  [1] ;  [4] ;  [5] ; ;  [6]
  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. (Germany)
  5. IMEDCO AG, CH-4614 Hägendorf (Switzerland)
  6. Physikalisch-Technische Bundesanstalt, 10587 Berlin (Germany)
Publication Date:
OSTI Identifier:
22410175
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 117; Journal Issue: 18; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ACCURACY; DAMPING; DESIGN; MAGNETIC FIELDS; PERFORMANCE; SHIELDING; SHIELDS