Optically pumped Cs magnetometers enabling a high-sensitivity search for the neutron electric dipole moment
- Abel, C.
- Afach, S.
- Ayres, N.J.
- Ban, G.
- Bison, G.
- Bodek, K.
- Bondar, V.
- Chanel, E.
- Chiu, P.-J
- Crawford, C.B.
- Chowdhuri, Z.
- Daum, M.
- Emmenegger, S.
- Ferraris-Bouchez, L.
- Fertl, M.
- Franke, B.
- Griffith, W.C.
- Grujić, Z.D.
- Hayen, L.
- Hélaine, V.
- Hild, N.
- Kasprzak, M.
- Kermaidic, Y.
- Kirch, K.
- Knowles, P.
- Koch, H.-C
- Komposch, S.
- Koss, P.A.
- Kozela, A.
- Krempel, J.
- Lauss, B.
- Lefort, T.
- Lemière, Y.
- Leredde, A.
- Mtchedlishvili, A.
- Mohanmurthy, P.
- Musgrave, M.
- Naviliat-Cuncic, O.
- Pais, D.
- Pazgalev, A.
- Piegsa, F.M.
- Pierre, E.
- Pignol, G.
- Prashanth, P.N.
- Quéméner, G.
- Rawlik, M.
- Rebreyend, D.
- Ries, D.
- Roccia, S.
- Rozpedzik, D.
- Schmidt-Wellenburg, P.
- Schnabel, A.
- Severijns, N.
- Tavakoli Dinani, R.
- Thorne, J.
- Weis, A.
- Wursten, E.
- Wyszynski, G.
- Zejma, J.
- Zsigmond, G.
DOIAbstract
International audienceAn array of 16 laser-pumped scalar Cs magnetometers was part of the neutron electric dipole moment (nEDM) experiment taking data at the Paul Scherrer Institute in 2015 and 2016. It was deployed to measure the gradients of the experiment's magnetic field and to monitor their temporal evolution. The originality of the array lies in its compact design, in which a single near-infrared diode laser drives all magnetometers that are located in a high-vacuum chamber, with a selection of the sensors mounted on a high-voltage electrode. We describe details of the Cs sensors' construction and modes of operation, emphasizing the accuracy and sensitivity of the magnetic-field readout. We present two applications of the magnetometer...
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