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Investigation of the intrinsic sensitivity of a 3He/Cs magnetometer

Koch, Hans-Christian ; Bison, Georg ; Grujić, Zoran D. ; Heil, Werner ; Kasprzak, Malgorzata ; Knowles, Paul ; Kraft, Andreas ; Pazgalev, Anatoly ; Schnabel, Allard ; Voigt, Jens ; Weis, Antoine

In: The European Physical Journal D, 2015, vol. 69, no. 11, p. 1-11

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    Title
    • Investigation of the intrinsic sensitivity of a 3He/Cs magnetometer
    Author
    • Koch, Hans-Christian. Physics Department, University of Fribourg, 1700, Fribourg, Switzerland
    • Bison, Georg. Paul Scherrer Institute, 5232, Villigen, Switzerland
    • Grujić, Zoran D.. Physics Department, University of Fribourg, 1700, Fribourg, Switzerland
    • Heil, Werner. Department of Physics, Johannes Gutenberg-University, 55122, Mainz, Germany
    • Kasprzak, Malgorzata. Physics Department, University of Fribourg, 1700, Fribourg, Switzerland
    • Knowles, Paul. Physics Department, University of Fribourg, 1700, Fribourg, Switzerland
    • Kraft, Andreas. Department of Physics, Johannes Gutenberg-University, 55122, Mainz, Germany
    • Pazgalev, Anatoly. Ioffe Physical Technical Institute, Russian Academy of Sciences, 194021, St. Petersburg, Russia
    • Schnabel, Allard. Physikalisch-Technische Bundesanstalt, 10587, Berlin, Germany
    • Voigt, Jens. Physikalisch-Technische Bundesanstalt, 10587, Berlin, Germany
    • Weis, Antoine. Physics Department, University of Fribourg, 1700, Fribourg, Switzerland
    Document Type
    • Postprint
    OAI-PMH Identifier
    • oai:doc.rero.ch:333000
    Summary
    We report on extensive studies on the intrinsic sensitivity of a combined 3He/Cs magnetometer. The magnetometer relies on the detection of the free spin precession of nuclear spin polarized 3He by optically pumped cesium magnetometers. We characterize the relevant processes involved in the detection and quantify their impact on the total sensitivity of the magnetometer. An expression is derived that predicts the sensitivity of this magnetometer scheme and the results are compared to experiments. Excellent agreement is found between theory and experiments, and implications for an application of a 3He/Cs magnetometer in an experiment searching for a permanent neutron electric dipole moment are discussed. Graphical abstract: