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Simulation and optimization of the Active Magnetic Shield of the n2EDM experiment

Fuente: arXiv

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Detalles Bibliográficos
Autores principales:	Ayres, N. J., Ban, G., Bison, G., Bodek, K., Bondar, V., Bouillaud, T., Caratsch, G. L., Chanel, E., Chen, W., Crawford, C., Czamler, V., Doorenbos, C. B., Emmeneger, S., Ermakov, S. K., Ferry, M., Fertl, M., Fratangelo, A., Galbinski, D., Griffith, W. C., Grujic, Z. D., Kirch, K., Kletzl, V., Krempel, J., Lauss, B., Lefort, T., Lejuez, A., Michielsen, K., Micko, J., Mullan, P., Naviliat-Cuncic, O., Piegsa, F. M., Pignol, G., Pistillo, C., Rienäcker, I., Ries, D., Roccia, S., Rozpędzik, D., Zielniewicz, L. Sanchez-Real, von Schickh, N., Schmidt-Wellenburg, P., Segarra, E. P., Segner, L., Severijns, N., Svirina, K., Thorne, J., Vankeirsbilck, J., Yazdandoost, N., Zejma, J., Ziehl, N., Zsigmond, G.
Formato:	Preprint
Publicado:	2026
Materias:	Instrumentation and Detectors Nuclear Experiment
Acceso en línea:	Acceder al recurso
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

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author	Ayres, N. J. Ban, G. Bison, G. Bodek, K. Bondar, V. Bouillaud, T. Caratsch, G. L. Chanel, E. Chen, W. Crawford, C. Czamler, V. Doorenbos, C. B. Emmeneger, S. Ermakov, S. K. Ferry, M. Fertl, M. Fratangelo, A. Galbinski, D. Griffith, W. C. Grujic, Z. D. Kirch, K. Kletzl, V. Krempel, J. Lauss, B. Lefort, T. Lejuez, A. Michielsen, K. Micko, J. Mullan, P. Naviliat-Cuncic, O. Piegsa, F. M. Pignol, G. Pistillo, C. Rienäcker, I. Ries, D. Roccia, S. Rozpędzik, D. Zielniewicz, L. Sanchez-Real von Schickh, N. Schmidt-Wellenburg, P. Segarra, E. P. Segner, L. Severijns, N. Svirina, K. Thorne, J. Vankeirsbilck, J. Yazdandoost, N. Zejma, J. Ziehl, N. Zsigmond, G.
author_facet	Ayres, N. J. Ban, G. Bison, G. Bodek, K. Bondar, V. Bouillaud, T. Caratsch, G. L. Chanel, E. Chen, W. Crawford, C. Czamler, V. Doorenbos, C. B. Emmeneger, S. Ermakov, S. K. Ferry, M. Fertl, M. Fratangelo, A. Galbinski, D. Griffith, W. C. Grujic, Z. D. Kirch, K. Kletzl, V. Krempel, J. Lauss, B. Lefort, T. Lejuez, A. Michielsen, K. Micko, J. Mullan, P. Naviliat-Cuncic, O. Piegsa, F. M. Pignol, G. Pistillo, C. Rienäcker, I. Ries, D. Roccia, S. Rozpędzik, D. Zielniewicz, L. Sanchez-Real von Schickh, N. Schmidt-Wellenburg, P. Segarra, E. P. Segner, L. Severijns, N. Svirina, K. Thorne, J. Vankeirsbilck, J. Yazdandoost, N. Zejma, J. Ziehl, N. Zsigmond, G.
contents	The n2EDM experiment at the Paul Scherrer Institute aims to conduct a high-sensitivity search for the electric dipole moment of the neutron. Magnetic stability and control are achieved through a combination of passive shielding, provided by a magnetically shielded room (MSR), and a surrounding active field compensation system by an Active Magnetic Shield (AMS). The AMS is a feedback-controlled system of eight coils spanned on an irregular grid, designed to provide magnetic stability to the enclosed volume by actively suppressing external magnetic disturbances. It can compensate static and variable magnetic fields up to $\pm 50$ $μ$T (homogeneous components) and $\pm 5$ $μ$T/m (first-order gradients), suppressing them to a few $μ$T in the sub-Hertz frequency range. We present a full finite element simulation of magnetic fields generated by the AMS in the presence of the MSR. This simulation is of sufficient accuracy to approach our measurements. We demonstrate how the simulation can be used with an example, obtaining an optimal number and placement of feedback sensors using genetic algorithms.
format	Preprint
id	arxiv_https___arxiv_org_abs_2601_22960
institution	arXiv
publishDate	2026
record_format	arxiv
spellingShingle	Simulation and optimization of the Active Magnetic Shield of the n2EDM experiment Ayres, N. J. Ban, G. Bison, G. Bodek, K. Bondar, V. Bouillaud, T. Caratsch, G. L. Chanel, E. Chen, W. Crawford, C. Czamler, V. Doorenbos, C. B. Emmeneger, S. Ermakov, S. K. Ferry, M. Fertl, M. Fratangelo, A. Galbinski, D. Griffith, W. C. Grujic, Z. D. Kirch, K. Kletzl, V. Krempel, J. Lauss, B. Lefort, T. Lejuez, A. Michielsen, K. Micko, J. Mullan, P. Naviliat-Cuncic, O. Piegsa, F. M. Pignol, G. Pistillo, C. Rienäcker, I. Ries, D. Roccia, S. Rozpędzik, D. Zielniewicz, L. Sanchez-Real von Schickh, N. Schmidt-Wellenburg, P. Segarra, E. P. Segner, L. Severijns, N. Svirina, K. Thorne, J. Vankeirsbilck, J. Yazdandoost, N. Zejma, J. Ziehl, N. Zsigmond, G. Instrumentation and Detectors Nuclear Experiment The n2EDM experiment at the Paul Scherrer Institute aims to conduct a high-sensitivity search for the electric dipole moment of the neutron. Magnetic stability and control are achieved through a combination of passive shielding, provided by a magnetically shielded room (MSR), and a surrounding active field compensation system by an Active Magnetic Shield (AMS). The AMS is a feedback-controlled system of eight coils spanned on an irregular grid, designed to provide magnetic stability to the enclosed volume by actively suppressing external magnetic disturbances. It can compensate static and variable magnetic fields up to $\pm 50$ $μ$T (homogeneous components) and $\pm 5$ $μ$T/m (first-order gradients), suppressing them to a few $μ$T in the sub-Hertz frequency range. We present a full finite element simulation of magnetic fields generated by the AMS in the presence of the MSR. This simulation is of sufficient accuracy to approach our measurements. We demonstrate how the simulation can be used with an example, obtaining an optimal number and placement of feedback sensors using genetic algorithms.
title	Simulation and optimization of the Active Magnetic Shield of the n2EDM experiment
topic	Instrumentation and Detectors Nuclear Experiment
url	https://arxiv.org/abs/2601.22960