Journal article

Dynamic stabilization of the magnetic field surrounding the neutron electric dipole moment spectrometer at the Paul Scherrer Institute

  • Afach, S. Paul Scherrer Institute, Villigen, Switzerland - Institute for Particle Physics, Eidgenössische Technische Hochschule, Zürich, Switzerland
  • Bison, Georg Paul Scherrer Institute, Villigen, Switzerland
  • Bodek, K. Jagellonian University, Cracow, Poland
  • Burri, F. Paul Scherrer Institute, Villigen, Switzerland
  • Chowdhuri, Z. Paul Scherrer Institute, Villigen, Switzerland
  • Daum, M. Paul Scherrer Institute, Villigen, Switzerland
  • Fertl, M. Paul Scherrer Institute, Villigen, Switzerland - Institute for Particle Physics, Eidgenössische Technische Hochschule, Zürich, Switzerland - University of Washington, Seattle, Washington, USA
  • Franke, B. Paul Scherrer Institute, Villigen, Switzerland - Institute for Particle Physics, Eidgenössische Technische Hochschule, Zürich, Switzerland - Max Planck Institute of Quantum Optics, Garching, Germany
  • Grujić, Zoran D. University of Fribourg, Switzerland
  • Hélaine, V. Paul Scherrer Institute, Villigen, Switzerland - Laboratoire de Physique Corpusculaire, Caen, France
  • Henneck, R. Paul Scherrer Institute, Villigen, Switzerland
  • Kasprzak, Malgorzata University of Fribourg, Switzerland
  • Kirch, K. Paul Scherrer Institute, Villigen, Switzerland - Institute for Particle Physics, Eidgenössische Technische Hochschule, Zürich, Switzerland
  • Koch, Hans-Christian University of Fribourg, Switzerland - Institut für Physik, Johannes-Gutenberg-Universität, Mainz, Germany
  • Kozela, A. Henryk Niedwodniczański Institute for Nuclear Physics, Cracow, Poland
  • Krempel, J. Institute for Particle Physics, Eidgenössische Technische Hochschule, Zürich, Switzerland
  • Lauss, B. Paul Scherrer Institute, Villigen, Switzerland
  • Lefort, T. Laboratoire de Physique Corpusculaire, Caen, France
  • Lemière, Y. Laboratoire de Physique Corpusculaire, Caen, France
  • Meier, M. Paul Scherrer Institute, Villigen, Switzerland
  • Naviliat-Cuncic, O. Laboratoire de Physique Corpusculaire, Caen, France - Michigan State University, East Lansing, Michigan, USA
  • Piegsa, F. M. Institute for Particle Physics, Eidgenössische Technische Hochschule, Zürich, Switzerland
  • Pignol, G. Laboratoire de Physique Subatomique et de Cosmologie, Grenoble, France
  • Plonka-Spehr, C. Institut für Kernchemie, Johannes-Gutenberg-Universität, Mainz, Germany
  • Prashanth, P. N. Paul Scherrer Institute, Villigen, Switzerland - Katholieke Universiteit, Leuven, Belgium
  • Quéméner, G. Laboratoire de Physique Corpusculaire, Caen, France
  • Rebreyend, D. Laboratoire de Physique Subatomique et de Cosmologie, Grenoble, France
  • Roccia, S. Centre de Sciences Nucléaires et de Sciences de la Matière, Université Paris Sud, France
  • Schmidt-Wellenburg, P. Paul Scherrer Institute, Villigen, Switzerland
  • Schnabel, A. Physikalisch Technische Bundesanstalt, Berlin, Germany
  • Severijns, N. Katholieke Universiteit, Leuven, Belgium
  • Voigt, J. Physikalisch Technische Bundesanstalt, Berlin, Germany
  • Weis, Antoine University of Fribourg, Switzerland
  • Wyszynski, G. Institute for Particle Physics, Eidgenössische Technische Hochschule, Zürich, Switzerland - Jagellonian University, Cracow, Poland
  • Zejma, J. Jagellonian University, Cracow, Poland
  • Zenner, J. Institute for Particle Physics, Eidgenössische Technische Hochschule, Zürich, Switzerland
  • Zsigmond, G. Paul Scherrer Institute, Villigen, Switzerland
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    28.08.2014
Published in:
  • Journal of Applied Physics. - 2014, vol. 116, no. 8, p. 084510
English The Surrounding Field Compensation (SFC) system described in this work is installed around the four-layer Mu-metal magnetic shield of the neutron electric dipole moment spectrometer located at the Paul Scherrer Institute. The SFC system reduces the DC component of the external magnetic field by a factor of about 20. Within a control volume of approximately 2.5 m × 2.5 m × 3 m, disturbances of the magnetic field are attenuated by factors of 5–50 at a bandwidth from 10−3 Hz up to 0.5 Hz, which corresponds to integration times longer than several hundreds of seconds and represent the important timescale for the neutron electric dipole moment measurement. These shielding factors apply to random environmental noise from arbitrary sources. This is achieved via a proportional-integral feedback stabilization system that includes a regularized pseudoinverse matrix of proportionality factors which correlates magnetic field changes at all sensor positions to current changes in the SFC coils.
Faculty
Faculté des sciences
Department
Physique
Language
  • English
Classification
Physics
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https://folia.unifr.ch/unifr/documents/303739
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