Academic Journal
A large ‘Active Magnetic Shield’ for a high-precision experiment
| Title: | A large ‘Active Magnetic Shield’ for a high-precision experiment |
|---|---|
| Authors: | C. Abel, N. J. Ayres, G. Ban, G. Bison, K. Bodek, V. Bondar, T. Bouillaud, E. Chanel, J. Chen, W. Chen, P. -J. Chiu, C. B. Crawford, M. Daum, C. B. Doorenbos, S. Emmenegger, L. Ferraris-Bouchez, M. Fertl, A. Fratangelo, W. C. Griffith, Z. D. Grujic, P. Harris, K. Kirch, V. Kletzl, P. A. Koss, J. Krempel, B. Lauss, T. Lefort, P. Mullan, O. Naviliat-Cuncic, D. Pais, F. M. Piegsa, G. Pignol, M. Rawlik, I. Rienäcker, D. Ries, S. Roccia, D. Rozpedzik, W. Saenz-Arevalo, P. Schmidt-Wellenburg, A. Schnabel, E. P. Segarra, N. Severijns, T. Shelton, K. Svirina, R. Tavakoli Dinani, J. Thorne, R. Virot, N. Yazdandoost, J. Zejma, N. Ziehl, G. Zsigmond |
| Source: | European Physical Journal C: Particles and Fields, Vol 83, Iss 11, Pp 1-17 (2023) |
| Publisher Information: | SpringerOpen, 2023. |
| Publication Year: | 2023 |
| Collection: | LCC:Astrophysics LCC:Nuclear and particle physics. Atomic energy. Radioactivity |
| Subject Terms: | Astrophysics, QB460-466, Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798 |
| More Details: | Abstract 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 $$10^5$$ 10 5 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 $$^3$$ 3 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 $$\pm \, 50 \, {\upmu }\hbox {T}$$ ± 50 μ T (homogeneous components) and $$\pm \, 5 \, {\upmu }\hbox {T/m}$$ ± 5 μ T/m (first-order gradients), suppressing them to a few $${\upmu }\hbox {T}$$ μ T 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. |
| Document Type: | article |
| File Description: | electronic resource |
| Language: | English |
| ISSN: | 1434-6052 |
| Relation: | https://doaj.org/toc/1434-6052 |
| DOI: | 10.1140/epjc/s10052-023-12225-z |
| Access URL: | https://doaj.org/article/7f0e9c24790749f48601dd77847524b7 |
| Accession Number: | edsdoj.7f0e9c24790749f48601dd77847524b7 |
| Database: | Directory of Open Access Journals |
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| ISSN: | 14346052 |
|---|---|
| DOI: | 10.1140/epjc/s10052-023-12225-z |
| Published in: | European Physical Journal C: Particles and Fields |
| Language: | English |