Abel, C; Ayres, N J; Ban, G; Bison, G; Bodek, K; Bondar, V; Bouillaud, T; Chanel, E; Chen, J; Chen, W; Chiu, P-J; Crawford, C B; Daum, M; Doorenbos, C B; Emmenegger, S; Ferraris-Bouchez, L; Fertl, M; Fratangelo, A; Griffith, W C; Grujic, Z D; ... (2023). A large 'Active Magnetic Shield' for a high-precision experiment: nEDM collaboration. The European physical journal. C, Particles and fields, 83(11), p. 1061. Springer 10.1140/epjc/s10052-023-12225-z
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We present a novel Active Magnetic Shield (AMS), designed and implemented for the n2EDM experiment at the Paul Scherrer Institute. The experiment will perform a high-sensitivity search for the electric dipole moment of the neutron. Magnetic-field stability and control is of key importance for n2EDM. A large, cubic, 5 m side length, magnetically shielded room (MSR) provides a passive, quasi-static shielding-factor of about for its inner sensitive volume. The AMS consists of a system of eight complex, feedback-controlled compensation coils constructed on an irregular grid spanned on a volume of less than 1000 m around the MSR. The AMS is designed to provide a stable and uniform magnetic-field environment around the MSR, while being reasonably compact. The system can compensate static and variable magnetic fields up to (homogeneous components) and (first-order gradients), suppressing them to a few in the sub-Hertz frequency range. The presented design concept and implementation of the AMS fulfills the requirements of the n2EDM experiment and can be useful for other applications, where magnetically silent environments are important and spatial constraints inhibit simpler geometrical solutions.
Item Type: |
Journal Article (Original Article) |
|---|---|
Division/Institute: |
08 Faculty of Science > Physics Institute > Laboratory for High Energy Physics (LHEP) 10 Strategic Research Centers > Albert Einstein Center for Fundamental Physics (AEC) |
UniBE Contributor: |
Chanel, Estelle Ghislaine Amélie, Fratangelo, Anastasio, Piegsa, Florian Michael, Thorne, Jacob |
Subjects: |
500 Science > 530 Physics |
ISSN: |
1434-6044 |
Publisher: |
Springer |
Language: |
English |
Submitter: |
Pubmed Import |
Date Deposited: |
30 Nov 2023 14:56 |
Last Modified: |
03 Dec 2023 02:32 |
Publisher DOI: |
10.1140/epjc/s10052-023-12225-z |
PubMed ID: |
38021215 |
BORIS DOI: |
10.48350/189630 |
URI: |
https://boris.unibe.ch/id/eprint/189630 |
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