European Physical Journal C: Particles and Fields (Feb 2025)
Generating a highly uniform magnetic field inside the magnetically shielded room of the n2EDM experiment
- C. Abel,
- N. J. Ayres,
- G. Ban,
- G. Bison,
- K. Bodek,
- V. Bondar,
- T. Bouillaud,
- D. C. Bowles,
- G. L. Caratsch,
- E. Chanel,
- W. Chen,
- P.-J. Chiu,
- C. Crawford,
- B. Dechenaux,
- C. B. Doorenbos,
- S. Emmenegger,
- L. Ferraris-Bouchez,
- M. Fertl,
- P. Flaux,
- A. Fratangelo,
- D. Goupillière,
- W. C. Griffith,
- Z. Grujic,
- D. Höhl,
- M. Kasprzak,
- K. Kirch,
- V. Kletzl,
- S. V. Komposch,
- P. A. Koss,
- J. Krempel,
- B. Lauss,
- T. Lefort,
- A. Lejuez,
- R. Li,
- M. Meier,
- J. Menu,
- K. Michielsen,
- P. Mullan,
- A. Mullins,
- O. Naviliat-Cuncic,
- D. Pais,
- F. M. Piegsa,
- G. Pignol,
- G. Quemener,
- M. Rawlik,
- D. Rebreyend,
- I. Rienaecker,
- D. Ries,
- S. Roccia,
- D. Rozpedzik,
- A. Schnabel,
- P. Schmidt-Wellenburg,
- E. P. Segarra,
- N. Severijns,
- C. A. Smith,
- K. Svirina,
- R. Tavakoli,
- J. Thorne,
- S. Touati,
- J. Vankeirsbilck,
- R. Virot,
- J. Voigt,
- E. Wursten,
- N. Yazdandoost,
- J. Zejma,
- N. Ziehl,
- G. Zsigmond
Affiliations
- C. Abel
- Department of Physics and Astronomy, University of Sussex
- N. J. Ayres
- Institute for Particle Physics and Astrophysics, ETH Zürich
- G. Ban
- Université de Caen Normandie, ENSICAEN, CNRS/IN2P3, LPC Caen UMR6534
- G. Bison
- Laboratory for Particle Physics, PSI Center for Neutron and Muon Sciences, Paul Scherrer Institute (PSI)
- K. Bodek
- Marian Smoluchowski Institute of Physics, Jagiellonian University
- V. Bondar
- Institute for Particle Physics and Astrophysics, ETH Zürich
- T. Bouillaud
- LPSC, Université Grenoble Alpes, CNRS/IN2P3
- D. C. Bowles
- University of Kentucky
- G. L. Caratsch
- Institute for Particle Physics and Astrophysics, ETH Zürich
- E. Chanel
- University of Bern, Albert Einstein Center for Fundamental Physics
- W. Chen
- Institute for Particle Physics and Astrophysics, ETH Zürich
- P.-J. Chiu
- Institute for Particle Physics and Astrophysics, ETH Zürich
- C. Crawford
- University of Kentucky
- B. Dechenaux
- Université de Caen Normandie, ENSICAEN, CNRS/IN2P3, LPC Caen UMR6534
- C. B. Doorenbos
- Institute for Particle Physics and Astrophysics, ETH Zürich
- S. Emmenegger
- Institute for Particle Physics and Astrophysics, ETH Zürich
- L. Ferraris-Bouchez
- LPSC, Université Grenoble Alpes, CNRS/IN2P3
- M. Fertl
- Institute of Physics, Johannes Gutenberg University
- P. Flaux
- Université de Caen Normandie, ENSICAEN, CNRS/IN2P3, LPC Caen UMR6534
- A. Fratangelo
- University of Bern, Albert Einstein Center for Fundamental Physics
- D. Goupillière
- Université de Caen Normandie, ENSICAEN, CNRS/IN2P3, LPC Caen UMR6534
- W. C. Griffith
- Department of Physics and Astronomy, University of Sussex
- Z. Grujic
- Institute of Physics Belgrade, University of Belgrade
- D. Höhl
- Institute for Particle Physics and Astrophysics, ETH Zürich
- M. Kasprzak
- Institute for Nuclear and Radiation Physics, KU Leuven
- K. Kirch
- Institute for Particle Physics and Astrophysics, ETH Zürich
- V. Kletzl
- Institute for Particle Physics and Astrophysics, ETH Zürich
- S. V. Komposch
- Institute for Particle Physics and Astrophysics, ETH Zürich
- P. A. Koss
- Institute for Nuclear and Radiation Physics, KU Leuven
- J. Krempel
- Institute for Particle Physics and Astrophysics, ETH Zürich
- B. Lauss
- Laboratory for Particle Physics, PSI Center for Neutron and Muon Sciences, Paul Scherrer Institute (PSI)
- T. Lefort
- Université de Caen Normandie, ENSICAEN, CNRS/IN2P3, LPC Caen UMR6534
- A. Lejuez
- Université de Caen Normandie, ENSICAEN, CNRS/IN2P3, LPC Caen UMR6534
- R. Li
- Institute for Nuclear and Radiation Physics, KU Leuven
- M. Meier
- Laboratory for Particle Physics, PSI Center for Neutron and Muon Sciences, Paul Scherrer Institute (PSI)
- J. Menu
- LPSC, Université Grenoble Alpes, CNRS/IN2P3
- K. Michielsen
- LPSC, Université Grenoble Alpes, CNRS/IN2P3
- P. Mullan
- Institute for Particle Physics and Astrophysics, ETH Zürich
- A. Mullins
- University of Kentucky
- O. Naviliat-Cuncic
- Université de Caen Normandie, ENSICAEN, CNRS/IN2P3, LPC Caen UMR6534
- D. Pais
- Institute for Particle Physics and Astrophysics, ETH Zürich
- F. M. Piegsa
- University of Bern, Albert Einstein Center for Fundamental Physics
- G. Pignol
- LPSC, Université Grenoble Alpes, CNRS/IN2P3
- G. Quemener
- Université de Caen Normandie, ENSICAEN, CNRS/IN2P3, LPC Caen UMR6534
- M. Rawlik
- Institute for Particle Physics and Astrophysics, ETH Zürich
- D. Rebreyend
- LPSC, Université Grenoble Alpes, CNRS/IN2P3
- I. Rienaecker
- Laboratory for Particle Physics, PSI Center for Neutron and Muon Sciences, Paul Scherrer Institute (PSI)
- D. Ries
- Laboratory for Particle Physics, PSI Center for Neutron and Muon Sciences, Paul Scherrer Institute (PSI)
- S. Roccia
- LPSC, Université Grenoble Alpes, CNRS/IN2P3
- D. Rozpedzik
- Marian Smoluchowski Institute of Physics, Jagiellonian University
- A. Schnabel
- Physikalisch Technische Bundesanstalt
- P. Schmidt-Wellenburg
- Laboratory for Particle Physics, PSI Center for Neutron and Muon Sciences, Paul Scherrer Institute (PSI)
- E. P. Segarra
- Laboratory for Particle Physics, PSI Center for Neutron and Muon Sciences, Paul Scherrer Institute (PSI)
- N. Severijns
- Institute for Nuclear and Radiation Physics, KU Leuven
- C. A. Smith
- University of Kentucky
- K. Svirina
- LPSC, Université Grenoble Alpes, CNRS/IN2P3
- R. Tavakoli
- Institute for Nuclear and Radiation Physics, KU Leuven
- J. Thorne
- University of Bern, Albert Einstein Center for Fundamental Physics
- S. Touati
- LPSC, Université Grenoble Alpes, CNRS/IN2P3
- J. Vankeirsbilck
- Institute for Nuclear and Radiation Physics, KU Leuven
- R. Virot
- LPSC, Université Grenoble Alpes, CNRS/IN2P3
- J. Voigt
- Physikalisch Technische Bundesanstalt
- E. Wursten
- Institute for Nuclear and Radiation Physics, KU Leuven
- N. Yazdandoost
- Department of Chemistry-TRIGA Site, Johannes Gutenberg University
- J. Zejma
- Marian Smoluchowski Institute of Physics, Jagiellonian University
- N. Ziehl
- Institute for Particle Physics and Astrophysics, ETH Zürich
- G. Zsigmond
- Laboratory for Particle Physics, PSI Center for Neutron and Muon Sciences, Paul Scherrer Institute (PSI)
- DOI
- https://doi.org/10.1140/epjc/s10052-025-13902-x
- Journal volume & issue
-
Vol. 85,
no. 2
pp. 1 – 19
Abstract
Abstract We present a coil system designed to generate a highly uniform magnetic field for the n2EDM experiment at the Paul Scherrer Institute. It consists of a main $$B_0$$ B 0 coil and a set of auxiliary coils mounted on a cubic structure with a side length of $$273~\hbox {cm}$$ 273 cm , inside a large magnetically shielded room (MSR). We have assembled this system and characterized its performances with a mapping robot. The apparatus is able to generate a $$1~\upmu \hbox {T}$$ 1 μ T vertical field with a relative root mean square deviation $$\sigma (B_z)/B_z = 3\times 10^{-5}$$ σ ( B z ) / B z = 3 × 10 - 5 over the volume of interest, a cylinder of radius $$40~\hbox {cm}$$ 40 cm and height $${30}~\hbox {cm}$$ 30 cm . This level of uniformity overcomes the n2EDM requirements, allowing a measurement of the neutron Electric Dipole Moment with a sensitivity better than $$1\times 10^{-27}e\,\hbox {cm}$$ 1 × 10 - 27 e cm .
